diff --git a/lib/core/translations/language/en_us.dart b/lib/core/translations/language/en_us.dart
index 15c5c1829..3868f975a 100644
--- a/lib/core/translations/language/en_us.dart
+++ b/lib/core/translations/language/en_us.dart
@@ -186,6 +186,52 @@ const Map<String, String> enUS = {
   "usageStatsInfo": "View Your Usage Statistics",
   "scene": "Scenarios",
 
+  /// 用量统计模块
+  "aiChat": "AI Chat",
+  "translationStats": "Translation Statistics",
+  "meetingStats": "Meeting Statistics",
+  "today": "Today",
+  "thisWeek": "This Week",
+  "thisMonth": "This Month",
+  "history": "History",
+  "currentSessionStats": "Current Session Stats",
+  "translationCount": "Translation Count",
+  "sessionDuration": "Session Duration",
+  "characters": "Characters",
+  "recordingDuration": "Recording Duration",
+  "totalApiCalls": "Total API Calls",
+  "sessionCount": "Session Count",
+  "totalCharacters": "Total Characters",
+  "apiCallStats": "API Call Stats",
+  "translationApi": "Translation API",
+  "asr": "ASR",
+  "tts": "TTS",
+  // "aiSummary": "AI Summary",
+  "dataVolumeStats": "Data Volume Stats",
+  "sourceTextCharacters": "Source Text Characters",
+  "ttsTextCharacters": "TTS Text Characters",
+  "effectiveAudioDuration": "Effective Audio Duration",
+  "totalSessionDuration": "Total Session Duration",
+  "costStats": "Cost Stats",
+  "estimatedCost": "Estimated Cost",
+  "dailyCostThreshold": "Daily Cost Threshold",
+  "monthlyCostThreshold": "Monthly Cost Threshold",
+  "usageBehaviorStats": "Usage Behavior Stats",
+  "mostUsedLanguagePair": "Most-used language pair",
+  "mostUsedMode": "Most-used mode",
+  "asrApiCalls": "ASR Calls",
+  "totalAudioDuration": "Total Audio Duration",
+  "audioFileSize": "Audio File Size",
+  "transcriptBytes": "Transcript Bytes",
+  //通知文案
+  "loadFailed": "Load Failed",
+  "statsLoadFailedTryLater":
+      "Statistics failed to load. Please try again later.",
+  "cleanupComplete": "Cleanup Complete",
+  "cleanedOldData": "Cleaned data older than 90 days",
+  "exportFeature": "Export Feature",
+  "exportInDevelopment": "Data export is under development",
+
   // 商品页面（AI/翻译/会议）
   'availablePackages': 'Available Packages',
   'remainingQuota': 'Remaining Quota',
@@ -1150,6 +1196,7 @@ const Map<String, String> enUS = {
 
   // 翻译主页 (translation_view.dart)
   "translationHistory": "Translation History",
+  "historyRecords": "History Records",
   "enableRecording": "Enable Recording",
   "viewAudioFiles": "View Audio Files",
   "headsetUser": "Headset User",
@@ -1162,9 +1209,15 @@ const Map<String, String> enUS = {
   // 通用对话按钮与选项（用于统一语言选择弹窗等）
   // 翻译键代表的中文文本内容：取消/确认/自动检测
   "autoDetect": "Auto Detect",
+  // Text translation & language detection
+  "languageDetectionFailed": "Language detection failed",
+  "translationFailed": "Translation failed",
+  "pleaseInputText": "Please input text",
+  "textTooLong": "Text too long, max 5000 characters",
 
   // 翻译历史页
   "noTranslationHistory": "No translation history",
+  "clearResults": "Clear Results",
   "clearHistory": "Clear History",
   "clearHistoryConfirm":
       "Are you sure you want to clear all translation history? This action cannot be undone.",
@@ -1173,6 +1226,57 @@ const Map<String, String> enUS = {
   "deleteSessionConfirm":
       "Are you sure you want to delete all translation records for this session? This action cannot be undone.",
 
+  // Picture Translation module
+  "selectImageSource": "Select Image Source",
+  "imagePreview": "Image Preview",
+  "translationResult": "Translation Result",
+  "recognitionResult": "Recognition Result",
+  "translatedImagePreview": "Translated Image Preview",
+  "translatedImageLoadFailed": "Failed to load translated image",
+  "pleaseSelectImage": "Please select an image",
+  "imageLoadFailed": "Image load failed",
+  "imageQuality": "Image Quality",
+  "maxSize": "Max Size",
+  "close": "Close",
+  "setImageQuality": "Set Image Quality",
+  "currentQuality": "Current quality: @value%",
+  "setMaxSize": "Set Max Size",
+  "currentMaxSize": "Current: @pxpx",
+  "waitingForAction": "Waiting for action",
+  "pleaseSelectImageToStart": "Please select an image to start",
+  "chooseImage": "Choose Image",
+  "openingCamera": "Opening camera...",
+  "openingPhotoAlbum": "Opening photo album...",
+  "cancelled": "Cancelled",
+  "userCancelledSelection": "User cancelled selection",
+  "translatingImage": "Translating Image",
+  "callingImageTranslateService": "Calling image translation service...",
+  "savingRecord": "Saving Record",
+  "savingTranslationResult": "Saving translation result...",
+  "translationCompleted": "Translation Completed",
+  "allStepsCompleted": "All steps completed",
+  "processingFailed": "Processing Failed",
+  "imageProcessingOrTranslationFailed":
+      "Image processing or translation failed. Please retry.\nError: {error}",
+  "imageTooLarge": "Image size exceeds 4MB limit",
+  "imageTooLargeHint":
+      "Image size exceeds 4MB. Reduce quality or dimensions and retry",
+  "emptyTranslationResult": "Image translation API returned empty result",
+  "imageTranslationFailedTryLater":
+      "Image translation failed. Network issue or rate limit. Please try later",
+  "imageTranslationApiException":
+      "Image translation API exception. Check network and retry",
+  "permissionRequired": "Permission Required",
+  "cameraPermissionRequired": "Camera permission required to take photos",
+  "photoAlbumPermissionRequired":
+      "Photo album permission required to pick images",
+  "translationDetails": "Translation Details",
+  "originalImage": "Original Image",
+  "sourceLanguage": "Source Language",
+  "targetLanguage": "Target Language",
+  "translationTime": "Translation Time",
+  "shareInDevelopment": "Sharing feature under development",
+
   // 翻译录音文件列表页
   "translateAudioFiles": "Translate Audio Files",
   "noAudioFiles": "No audio files",
@@ -1382,6 +1486,9 @@ const Map<String, String> enUS = {
   "justNow": "Just now",
   "minutesAgo": "@minutes minutes ago",
   "yesterday": "Yesterday",
+  // Time extensions (used by picture translation)
+  "daysAgo": "@days days ago",
+  "hoursAgo": "@hours hours ago",
 
   //补充
   "insufficientIntegral": "Insufficient integral",
@@ -1390,4 +1497,7 @@ const Map<String, String> enUS = {
   "insufficientBalanceDesc":
       'Insufficient balance, please go to the corresponding recharge page to recharge.',
   "recharge": 'Go to Recharge',
+  // 会员到期提示（中文注释）
+  "aiMemberExpiredDesc":
+      'AI membership expired, please go to the membership recharge page to renew.',
 };
diff --git a/lib/core/translations/language/zh_cn.dart b/lib/core/translations/language/zh_cn.dart
index 2b5504527..64db2449d 100644
--- a/lib/core/translations/language/zh_cn.dart
+++ b/lib/core/translations/language/zh_cn.dart
@@ -179,6 +179,50 @@ const Map<String, String> zhCN = {
   "usageStats": "用量统计",
   "usageStatsInfo": "查看您的使用统计数据",
   "scene": "场景",
+  // 用量统计模块
+  "aiChat": "AI聊天",
+  "translationStats": "翻译统计",
+  "meetingStats": "会议统计",
+  "today": "今日",
+  "thisWeek": "本周",
+  "thisMonth": "本月",
+  "history": "历史",
+  "currentSessionStats": "当前会话统计",
+  "translationCount": "翻译次数",
+  "sessionDuration": "会话时长",
+  "characters": "字符数",
+  "recordingDuration": "录音时长",
+  "totalApiCalls": "总调用次数",
+  "sessionCount": "会话数量",
+  "totalCharacters": "总字符数",
+  "apiCallStats": "API调用统计",
+  "translationApi": "翻译API",
+  "asr": "语音识别",
+  "tts": "语音合成",
+  //"aiSummary": "AI摘要",
+  "dataVolumeStats": "数据量统计",
+  "sourceTextCharacters": "源文本字符",
+  "ttsTextCharacters": "TTS文本字符",
+  "effectiveAudioDuration": "有效音频时长",
+  "totalSessionDuration": "总会话时长",
+  "costStats": "成本统计",
+  "estimatedCost": "预估成本",
+  "dailyCostThreshold": "日成本预警阈值",
+  "monthlyCostThreshold": "月成本预警阈值",
+  "usageBehaviorStats": "使用行为统计",
+  "mostUsedLanguagePair": "最常用语言对",
+  "mostUsedMode": "最常用模式",
+  "asrApiCalls": "ASR调用次数",
+  "totalAudioDuration": "音频总时长",
+  "audioFileSize": "音频文件大小",
+  "transcriptBytes": "转写字节",
+  // 通知文案
+  "loadFailed": "加载失败",
+  "statsLoadFailedTryLater": "统计数据加载失败，请稍后重试",
+  "cleanupComplete": "清理完成",
+  "cleanedOldData": "已清理90天前的过期数据",
+  "exportFeature": "导出功能",
+  "exportInDevelopment": "数据导出功能正在开发中",
 
   // 商品页面（AI/翻译/会议）
   'availablePackages': '可购买套餐',
@@ -1067,15 +1111,68 @@ const Map<String, String> zhCN = {
   // 通用对话按钮与选项（用于统一语言选择弹窗等）
   // 以下翻译键的中文文本内容如注释所示
   "autoDetect": "自动检测", // 自动检测
+  // 文本翻译与语种检测
+  "languageDetectionFailed": "语言检测失败",
+  "translationFailed": "翻译失败",
+  "pleaseInputText": "请输入文本",
+  "textTooLong": "文本过长，最多5000字符",
 
   // 翻译历史页
   "noTranslationHistory": "暂无历史记录",
+  "historyRecords": "历史记录",
+  "clearResults": "清空结果",
   "clearHistory": "清除历史记录",
   "clearHistoryConfirm": "确定要清除所有翻译历史记录吗？此操作无法撤销。",
   "unknownLanguage": "未知语言",
   "deleteSessionRecord": "删除会话记录",
   "deleteSessionConfirm": "确定要删除该会话的所有翻译记录吗？此操作无法撤销。",
 
+  // 图片翻译模块（Picture Translation）
+  "selectImageSource": "选择图片来源",
+  "imagePreview": "图片预览",
+  "translationResult": "翻译结果",
+  "recognitionResult": "识别结果",
+  "translatedImagePreview": "翻译后的图片预览",
+  "translatedImageLoadFailed": "翻译图片加载失败",
+  "pleaseSelectImage": "请选择图片",
+  "imageLoadFailed": "图片加载失败",
+  "imageQuality": "图片质量",
+  "maxSize": "最大尺寸",
+  "close": "关闭",
+  "setImageQuality": "设置图片质量",
+  "currentQuality": "当前质量: @value%",
+  "setMaxSize": "设置最大尺寸",
+  "currentMaxSize": "当前: @pxpx",
+  "waitingForAction": "等待操作",
+  "pleaseSelectImageToStart": "请选择图片开始翻译",
+  "chooseImage": "选择图片",
+  "openingCamera": "正在打开相机...",
+  "openingPhotoAlbum": "正在打开相册...",
+  "cancelled": "已取消",
+  "userCancelledSelection": "用户取消了选择",
+  "translatingImage": "翻译图片",
+  "callingImageTranslateService": "正在调用图片翻译服务...",
+  "savingRecord": "保存记录",
+  "savingTranslationResult": "正在保存翻译结果...",
+  "translationCompleted": "翻译完成",
+  "allStepsCompleted": "所有步骤已完成",
+  "processingFailed": "处理失败",
+  "imageProcessingOrTranslationFailed": "图片处理或翻译失败，请重试。\n错误信息: {error}",
+  "imageTooLarge": "图片大小超过4MB限制",
+  "imageTooLargeHint": "图片大小超过4MB限制，请降低质量或尺寸后重试",
+  "emptyTranslationResult": "图片翻译接口返回空结果",
+  "imageTranslationFailedTryLater": "图片翻译失败，可能的原因：网络异常或接口限流，请稍后重试",
+  "imageTranslationApiException": "图片翻译接口调用异常，请检查网络后重试",
+  "permissionRequired": "权限需求",
+  "cameraPermissionRequired": "需要相机权限才能拍照",
+  "photoAlbumPermissionRequired": "需要相册权限才能选择图片",
+  "translationDetails": "翻译详情",
+  "originalImage": "原图片",
+  "sourceLanguage": "源语言",
+  "targetLanguage": "目标语言",
+  "translationTime": "翻译时间",
+  "shareInDevelopment": "分享功能开发中",
+
   // 翻译录音文件列表页
   "translateAudioFiles": "翻译录音文件",
   "noAudioFiles": "暂无音频文件",
@@ -1266,6 +1363,9 @@ const Map<String, String> zhCN = {
   "justNow": "刚刚",
   "minutesAgo": "@minutes分钟前",
   "yesterday": "昨天",
+  // 时间扩展（图片翻译模块使用）
+  "daysAgo": "@days天前",
+  "hoursAgo": "@hours小时前",
 
   //补充
   "insufficientIntegral": "积分不足",
@@ -1273,4 +1373,6 @@ const Map<String, String> zhCN = {
   //余额不足弹窗
   "insufficientBalanceDesc": "余额不足，请前往对应充值界面进行充值",
   "recharge": "前往充值",
+  // 会员到期提示
+  "aiMemberExpiredDesc": "AI会员已到期，请前往会员充值续费",
 };
diff --git a/lib/data/models/translation_usage_stats.dart b/lib/data/models/translation_usage_stats.dart
index 6d73b1958..db420c771 100644
--- a/lib/data/models/translation_usage_stats.dart
+++ b/lib/data/models/translation_usage_stats.dart
@@ -1,5 +1,3 @@
-
-
 /// 翻译模式统计数据
 class TranslationModeStats {
   final int apiCalls; // API调用次数
@@ -46,7 +44,8 @@ class TranslationModeStats {
     return TranslationModeStats(
       apiCalls: apiCalls ?? this.apiCalls,
       sourceCharacters: sourceCharacters ?? this.sourceCharacters,
-      effectiveAudioDuration: effectiveAudioDuration ?? this.effectiveAudioDuration,
+      effectiveAudioDuration:
+          effectiveAudioDuration ?? this.effectiveAudioDuration,
       ttsCharacters: ttsCharacters ?? this.ttsCharacters,
       cost: cost ?? this.cost,
     );
@@ -158,7 +157,7 @@ class TranslationUsageStats {
   final double estimatedCost; // 预估成本
   final String currency; // 货币单位
   final Map<String, double> costBreakdown; // 成本分解（ASR/TTS/Translation）
-  
+
   TranslationUsageStats({
     required this.id,
     required this.date,
@@ -196,7 +195,8 @@ class TranslationUsageStats {
 
     final languagePairStatsMap = <String, LanguagePairStats>{};
     if (json['languagePairStats'] != null) {
-      final languagePairStatsJson = json['languagePairStats'] as Map<String, dynamic>;
+      final languagePairStatsJson =
+          json['languagePairStats'] as Map<String, dynamic>;
       languagePairStatsJson.forEach((key, value) {
         languagePairStatsMap[key] = LanguagePairStats.fromJson(value);
       });
@@ -219,9 +219,15 @@ class TranslationUsageStats {
       asrApiCalls: json['asrApiCalls'] ?? 0,
       ttsApiCalls: json['ttsApiCalls'] ?? 0,
       aiSummaryApiCalls: json['aiSummaryApiCalls'] ?? 0,
-      sourceTextCharacters: json['sourceTextCharacters'] ?? json['sourceCharacterCount'] ?? 0, // 兼容旧字段
-      effectiveAudioDuration: json['effectiveAudioDuration'] ?? json['audioRecordingDuration'] ?? 0, // 兼容旧字段
-      ttsTextCharacters: json['ttsTextCharacters'] ?? json['targetCharacterCount'] ?? 0, // 兼容旧字段
+      sourceTextCharacters: json['sourceTextCharacters'] ??
+          json['sourceCharacterCount'] ??
+          0, // 兼容旧字段
+      effectiveAudioDuration: json['effectiveAudioDuration'] ??
+          json['audioRecordingDuration'] ??
+          0, // 兼容旧字段
+      ttsTextCharacters: json['ttsTextCharacters'] ??
+          json['targetCharacterCount'] ??
+          0, // 兼容旧字段
       totalSessionDuration: json['totalSessionDuration'] ?? 0,
       asrNetworkBytes: json['asrNetworkBytes'] ?? 0,
       ttsNetworkBytes: json['ttsNetworkBytes'] ?? 0,
@@ -328,12 +334,14 @@ class TranslationUsageStats {
       ttsApiCalls: ttsApiCalls ?? this.ttsApiCalls,
       aiSummaryApiCalls: aiSummaryApiCalls ?? this.aiSummaryApiCalls,
       sourceTextCharacters: sourceTextCharacters ?? this.sourceTextCharacters,
-      effectiveAudioDuration: effectiveAudioDuration ?? this.effectiveAudioDuration,
+      effectiveAudioDuration:
+          effectiveAudioDuration ?? this.effectiveAudioDuration,
       ttsTextCharacters: ttsTextCharacters ?? this.ttsTextCharacters,
       totalSessionDuration: totalSessionDuration ?? this.totalSessionDuration,
       asrNetworkBytes: asrNetworkBytes ?? this.asrNetworkBytes,
       ttsNetworkBytes: ttsNetworkBytes ?? this.ttsNetworkBytes,
-      translationNetworkBytes: translationNetworkBytes ?? this.translationNetworkBytes,
+      translationNetworkBytes:
+          translationNetworkBytes ?? this.translationNetworkBytes,
       sessionCount: sessionCount ?? this.sessionCount,
       modeStats: modeStats ?? this.modeStats,
       languagePairStats: languagePairStats ?? this.languagePairStats,
@@ -345,7 +353,8 @@ class TranslationUsageStats {
   }
 
   /// 获取总API调用次数
-  int get totalApiCalls => translationApiCalls + asrApiCalls + ttsApiCalls + aiSummaryApiCalls;
+  int get totalApiCalls =>
+      translationApiCalls + asrApiCalls + ttsApiCalls + aiSummaryApiCalls;
 
   /// 获取总字符数（精确计费基础）
   int get totalCharacterCount => sourceTextCharacters + ttsTextCharacters;
@@ -354,19 +363,21 @@ class TranslationUsageStats {
   int get totalAudioDuration => effectiveAudioDuration + totalSessionDuration;
 
   /// 获取总网络流量
-  int get totalNetworkBytes => asrNetworkBytes + ttsNetworkBytes + translationNetworkBytes;
+  int get totalNetworkBytes =>
+      asrNetworkBytes + ttsNetworkBytes + translationNetworkBytes;
 
   /// 获取最常用的语言对
   String get mostUsedLanguagePair {
-    if (languagePairStats.isEmpty) return '无数据';
+    if (languagePairStats.isEmpty) return 'null';
     return languagePairStats.entries
-        .reduce((a, b) => a.value.translationCount > b.value.translationCount ? a : b)
+        .reduce((a, b) =>
+            a.value.translationCount > b.value.translationCount ? a : b)
         .key;
   }
 
   /// 获取最常用的翻译模式
   String get mostUsedMode {
-    if (modeStats.isEmpty) return '无数据';
+    if (modeStats.isEmpty) return 'null';
     return modeStats.entries
         .reduce((a, b) => a.value.apiCalls > b.value.apiCalls ? a : b)
         .key;
diff --git a/lib/modules/common/widgets/language_selector_bar.dart b/lib/modules/common/widgets/language_selector_bar.dart
index 495a01a00..4b7878287 100644
--- a/lib/modules/common/widgets/language_selector_bar.dart
+++ b/lib/modules/common/widgets/language_selector_bar.dart
@@ -58,7 +58,7 @@ class LanguageSelectorBar extends StatelessWidget {
         isDarkMode ? AppColors.primary.withOpacity(0.2) : Colors.blue[50];
     final swapIconColor = isDarkMode ? AppColors.primary : Colors.blue;
 
-    // 规范化特殊项的翻译键，例如：自动检测 -> autoDetect（翻译键代表的中文文本内容）
+    // 规范化特殊项的翻译键，例如：自动检测 -> autoDetect（对应中文：自动检测）
     String _normalizeKey(String text) {
       switch (text) {
         case '自动检测':
diff --git a/lib/modules/common/widgets/recharge_dialog.dart b/lib/modules/common/widgets/recharge_dialog.dart
index 1dd6562b4..b3f6d15b8 100644
--- a/lib/modules/common/widgets/recharge_dialog.dart
+++ b/lib/modules/common/widgets/recharge_dialog.dart
@@ -2,6 +2,9 @@ import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import '../../../routes/app_routes.dart';
 
+/// 显示充值弹窗
+/// [type] 充值类型，可选值为 'agent'、'translation'、'meeting'
+/// 分别跳转对应ai充值、翻译充值、会议充值界面
 void showRechargeDialog(String type) {
   Get.dialog(
     Dialog(
@@ -24,7 +27,10 @@ void showRechargeDialog(String type) {
                 ),
                 const SizedBox(height: 12),
                 Text(
-                  'insufficientBalanceDesc'.tr, //'余额不足，请前往对应充值界面进行充值',
+                  (type == 'agent'
+                          ? 'aiMemberExpiredDesc'
+                          : 'insufficientBalanceDesc')
+                      .tr, // 会员过期描述 / 余额不足描述
                   textAlign: TextAlign.center,
                 ),
                 const SizedBox(height: 20),
diff --git a/lib/modules/meeting/controllers/meeting_home_controller.dart b/lib/modules/meeting/controllers/meeting_home_controller.dart
index fcea611a4..7eaab1b26 100644
--- a/lib/modules/meeting/controllers/meeting_home_controller.dart
+++ b/lib/modules/meeting/controllers/meeting_home_controller.dart
@@ -410,7 +410,8 @@ class MeetingHomeController extends GetxController {
           Logger.error('importFailed'
               .tr
               .replaceAll('{filePath}', filePath)
-              .replaceAll('{error}', e.toString())); // 翻译键代表的中文文本内容
+              .replaceAll('{error}',
+                  e.toString())); // 对应中文：导入文件失败: {filePath}, error: {error}
         }
       } else {
         effectivePath = filePath;
diff --git a/lib/modules/picture_translation/controllers/picture_translation_controller.dart b/lib/modules/picture_translation/controllers/picture_translation_controller.dart
index 9f25c0350..abd55af47 100644
--- a/lib/modules/picture_translation/controllers/picture_translation_controller.dart
+++ b/lib/modules/picture_translation/controllers/picture_translation_controller.dart
@@ -34,8 +34,8 @@ class PictureTranslationController extends GetxController {
   final isProcessing = false.obs;
   final pickedImageFile = Rx<File?>(null);
   final currentStep = ProcessingStep(
-    title: '等待操作',
-    description: '请选择图片开始翻译',
+    title: 'waitingForAction'.tr, // 等待操作
+    description: 'pleaseSelectImageToStart'.tr, // 请选择图片开始翻译
     status: ProcessingStatus.idle,
   ).obs;
 
@@ -152,13 +152,17 @@ class PictureTranslationController extends GetxController {
     if (source == ImageSource.camera) {
       final status = await Permission.camera.request();
       if (!status.isGranted) {
-        Get.snackbar('权限需求', '需要相机权限才能拍照');
+        Get.snackbar(
+            'permissionRequired'.tr, // 权限需求
+            'cameraPermissionRequired'.tr); // 需要相机权限才能拍照
         return false;
       }
     } else {
       final status = await Permission.photos.request();
       if (!status.isGranted) {
-        Get.snackbar('权限需求', '需要相册权限才能选择图片');
+        Get.snackbar(
+            'permissionRequired'.tr, // 权限需求
+            'photoAlbumPermissionRequired'.tr); // 需要相册权限才能选择图片
         return false;
       }
     }
@@ -194,8 +198,10 @@ class PictureTranslationController extends GetxController {
     try {
       isProcessing.value = true;
       _updateStep(
-          '选择图片',
-          '正在打开${source == ImageSource.camera ? '相机' : '相册'}...',
+          'chooseImage'.tr, // 选择图片
+          (source == ImageSource.camera
+              ? 'openingCamera'.tr // 正在打开相机...
+              : 'openingPhotoAlbum'.tr), // 正在打开相册...
           ProcessingStatus.picking);
 
       final XFile? image = await _imagePicker.pickImage(
@@ -206,7 +212,10 @@ class PictureTranslationController extends GetxController {
       );
 
       if (image == null) {
-        _updateStep('已取消', '用户取消了选择', ProcessingStatus.idle);
+        _updateStep(
+            'cancelled'.tr, // 已取消
+            'userCancelledSelection'.tr, // 用户取消了选择
+            ProcessingStatus.idle);
         return;
       }
 
@@ -217,23 +226,39 @@ class PictureTranslationController extends GetxController {
       pickedImageFile.value = file;
 
       // 直接调用图片翻译API（包含识别+回贴）
-      _updateStep('翻译图片', '正在调用图片翻译服务...', ProcessingStatus.translating,
+      _updateStep(
+          'translatingImage'.tr, // 翻译图片
+          'callingImageTranslateService'.tr, // 正在调用图片翻译服务...
+          ProcessingStatus.translating,
           progress: 0.6);
 
       await _performImageTranslation(file);
 
       // 保存历史记录
       if (sourceText.value.isNotEmpty && translatedText.value.isNotEmpty) {
-        _updateStep('保存记录', '正在保存翻译结果...', ProcessingStatus.saving,
+        _updateStep(
+            'savingRecord'.tr, // 保存记录
+            'savingTranslationResult'.tr, // 正在保存翻译结果...
+            ProcessingStatus.saving,
             progress: 0.9);
         await _saveTranslationResult(file);
       }
 
-      _updateStep('翻译完成', '所有步骤已完成', ProcessingStatus.idle, progress: 1.0);
+      _updateStep(
+          'translationCompleted'.tr, // 翻译完成
+          'allStepsCompleted'.tr, // 所有步骤已完成
+          ProcessingStatus.idle,
+          progress: 1.0);
     } catch (e) {
       Logger.error('PictureTranslation', '处理失败: $e');
-      _updateStep('处理失败', e.toString(), ProcessingStatus.error);
-      _showErrorDialog('处理失败', '图片处理或翻译失败，请重试。\n错误信息: $e');
+      _updateStep(
+          'processingFailed'.tr, // 处理失败
+          e.toString(),
+          ProcessingStatus.error);
+      _showErrorDialog(
+          'processingFailed'.tr, // 处理失败
+          'imageProcessingOrTranslationFailed'.tr.replaceAll(
+              '{error}', e.toString())); // 图片处理或翻译失败，请重试。错误信息: {error}
     } finally {
       isProcessing.value = false;
     }
@@ -286,8 +311,13 @@ class PictureTranslationController extends GetxController {
       // 图片大小限制：4MB（文档要求）
       const int maxSize = 4 * 1024 * 1024;
       if (bytes.lengthInBytes > maxSize) {
-        _updateStep('处理失败', '图片大小超过4MB限制', ProcessingStatus.error);
-        _showErrorDialog('处理失败', '图片大小超过4MB限制，请降低质量或尺寸后重试');
+        _updateStep(
+            'processingFailed'.tr, // 处理失败
+            'imageTooLarge'.tr, // 图片大小超过4MB限制
+            ProcessingStatus.error);
+        _showErrorDialog(
+            'processingFailed'.tr, // 处理失败
+            'imageTooLargeHint'.tr); // 图片大小超过4MB限制，请降低质量或尺寸后重试
         return;
       }
 
@@ -301,8 +331,13 @@ class PictureTranslationController extends GetxController {
       );
 
       if (result == null) {
-        _updateStep('处理失败', '图片翻译接口返回空结果', ProcessingStatus.error);
-        _showErrorDialog('处理失败', '图片翻译失败，可能的原因：网络异常或接口限流，请稍后重试');
+        _updateStep(
+            'processingFailed'.tr, // 处理失败
+            'emptyTranslationResult'.tr, // 图片翻译接口返回空结果
+            ProcessingStatus.error);
+        _showErrorDialog(
+            'processingFailed'.tr, // 处理失败
+            'imageTranslationFailedTryLater'.tr); // 失败原因提示
         return;
       }
 
@@ -322,8 +357,13 @@ class PictureTranslationController extends GetxController {
       }
     } catch (e) {
       Logger.error('PictureTranslation', '图片翻译调用失败: $e');
-      _updateStep('处理失败', e.toString(), ProcessingStatus.error);
-      _showErrorDialog('处理失败', '图片翻译接口调用异常，请检查网络后重试');
+      _updateStep(
+          'processingFailed'.tr, // 处理失败
+          e.toString(),
+          ProcessingStatus.error);
+      _showErrorDialog(
+          'processingFailed'.tr, // 处理失败
+          'imageTranslationApiException'.tr); // 接口调用异常
     }
   }
 
@@ -362,7 +402,7 @@ class PictureTranslationController extends GetxController {
         actions: [
           TextButton(
             onPressed: () => Get.back(),
-            child: const Text('确定'),
+            child: Text('confirm'.tr), // 确认
           ),
         ],
       ),
@@ -403,7 +443,9 @@ class PictureTranslationController extends GetxController {
   void copyText(String text) {
     if (text.isNotEmpty) {
       // 这里可以添加复制到剪切板的逻辑
-      Get.snackbar('成功', '文本已复制到剪切板');
+      Get.snackbar(
+          'success'.tr, // 成功
+          'copied'.tr); // 已复制
     }
   }
 
@@ -413,6 +455,9 @@ class PictureTranslationController extends GetxController {
     translatedText.value = '';
     translatedImageBytes.value = null;
     pickedImageFile.value = null;
-    _updateStep('等待操作', '请选择图片开始翻译', ProcessingStatus.idle);
+    _updateStep(
+        'waitingForAction'.tr, // 等待操作
+        'pleaseSelectImageToStart'.tr, // 请选择图片开始翻译
+        ProcessingStatus.idle);
   }
 }
diff --git a/lib/modules/picture_translation/views/picture_translation_history_detail_view.dart b/lib/modules/picture_translation/views/picture_translation_history_detail_view.dart
index b2fb50c8a..bf664acbc 100644
--- a/lib/modules/picture_translation/views/picture_translation_history_detail_view.dart
+++ b/lib/modules/picture_translation/views/picture_translation_history_detail_view.dart
@@ -3,6 +3,7 @@ import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:get/get.dart';
+import 'package:intl/intl.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import '../../../core/theme/app_colors.dart';
 
@@ -20,8 +21,7 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
   Widget build(BuildContext context) {
     final isDarkMode = Theme.of(context).brightness == Brightness.dark;
     return Scaffold(
-      backgroundColor:
-          isDarkMode ? AppColors.darkBackground : Colors.grey[50],
+      backgroundColor: isDarkMode ? AppColors.darkBackground : Colors.grey[50],
       appBar: AppBar(
         leading: IconButton(
           icon: Icon(
@@ -32,7 +32,7 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
           onPressed: () => Get.back(),
         ),
         centerTitle: true,
-        title: Text('翻译详情',
+        title: Text('translationDetails'.tr, // 翻译详情
             style: TextStyle(
                 color: isDarkMode ? AppColors.textPrimary : Colors.black87)),
         backgroundColor: isDarkMode ? AppColors.cardBackground : Colors.white,
@@ -56,9 +56,15 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
               SizedBox(height: 16.h),
               _buildLanguageInfo(),
               SizedBox(height: 16.h),
-              _buildTextSection('识别结果', item.sourceText, Colors.blue),
+              _buildTextSection(
+                  'recognitionResult'.tr, // 识别结果
+                  item.sourceText,
+                  Colors.blue),
               SizedBox(height: 16.h),
-              _buildTextSection('翻译结果', item.translatedText, Colors.green),
+              _buildTextSection(
+                  'translationResult'.tr, // 翻译结果
+                  item.translatedText,
+                  Colors.green),
               SizedBox(height: 16.h),
               _buildTimeInfo(),
             ],
@@ -89,12 +95,11 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
           Padding(
             padding: EdgeInsets.all(16.w),
             child: Text(
-              '原图片',
+              'originalImage'.tr, // 原图片
               style: TextStyle(
                 fontSize: 16.sp,
                 fontWeight: FontWeight.w600,
-                color:
-                    Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
+                color: Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
               ),
             ),
           ),
@@ -122,7 +127,7 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
                             size: 48.sp, color: AppColors.error),
                         SizedBox(height: 8.h),
                         Text(
-                          '图片加载失败',
+                          'imageLoadFailed'.tr, // 图片加载失败
                           style: TextStyle(
                               fontSize: 14.sp, color: AppColors.error),
                         ),
@@ -161,7 +166,7 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 Text(
-                  '源语言',
+                  'sourceLanguage'.tr, // 源语言
                   style: TextStyle(
                       fontSize: 12.sp,
                       color: Get.isDarkMode
@@ -170,7 +175,7 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
                 ),
                 SizedBox(height: 4.h),
                 Text(
-                  item.sourceLanguageName,
+                  item.sourceLanguageName.tr,
                   style: TextStyle(
                     fontSize: 16.sp,
                     fontWeight: FontWeight.w600,
@@ -187,7 +192,7 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.end,
               children: [
                 Text(
-                  '目标语言',
+                  'targetLanguage'.tr, // 目标语言
                   style: TextStyle(
                       fontSize: 12.sp,
                       color: Get.isDarkMode
@@ -196,7 +201,7 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
                 ),
                 SizedBox(height: 4.h),
                 Text(
-                  item.targetLanguageName,
+                  item.targetLanguageName.tr,
                   style: TextStyle(
                     fontSize: 16.sp,
                     fontWeight: FontWeight.w600,
@@ -245,11 +250,13 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
                 icon: Icon(Icons.copy, size: 20.sp, color: color),
                 onPressed: () {
                   Clipboard.setData(ClipboardData(text: content));
-                  Get.snackbar('成功', '已复制到剪切板');
+                  Get.snackbar(
+                      'success'.tr, // 成功
+                      'copied'.tr); // 已复制
                 },
                 padding: EdgeInsets.zero,
                 constraints: const BoxConstraints(),
-                tooltip: '复制',
+                tooltip: 'copy'.tr, // 复制
               ),
             ],
           ),
@@ -287,12 +294,11 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           Text(
-            '翻译时间',
+            'translationTime'.tr, // 翻译时间
             style: TextStyle(
               fontSize: 16.sp,
               fontWeight: FontWeight.w600,
-              color:
-                  Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
+              color: Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
             ),
           ),
           SizedBox(height: 8.h),
@@ -300,7 +306,8 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
             _formatDateTime(item.timestamp),
             style: TextStyle(
               fontSize: 14.sp,
-              color: Get.isDarkMode ? AppColors.textSecondary : Colors.grey[600],
+              color:
+                  Get.isDarkMode ? AppColors.textSecondary : Colors.grey[600],
             ),
           ),
         ],
@@ -309,17 +316,18 @@ class PictureTranslationHistoryDetailView extends StatelessWidget {
   }
 
   String _formatDateTime(DateTime dateTime) {
-    return '${dateTime.year}年${dateTime.month}月${dateTime.day}日 '
-        '${dateTime.hour.toString().padLeft(2, '0')}:'
-        '${dateTime.minute.toString().padLeft(2, '0')}';
+    return DateFormat('yyyy-MM-dd HH:mm').format(dateTime);
   }
 
   void _shareTranslation() {
-    final shareText = '原文：${item.sourceText}\n\n'
-        '译文：${item.translatedText}\n\n'
-        '翻译方向：${item.sourceLanguageName} → ${item.targetLanguageName}';
+    final shareText = '${'originalText'.tr}：${item.sourceText}\n\n' // 原文
+        '${'translatedText'.tr}：${item.translatedText}\n\n' // 译文
+        '${'sourceLanguage'.tr}：${item.sourceLanguageName.tr} → ' // 源语言
+        '${'targetLanguage'.tr}：${item.targetLanguageName.tr}'; // 目标语言
 
     // 这里可以调用分享插件
-    Get.snackbar('提示', '分享功能开发中');
+    Get.snackbar(
+        'tip'.tr, // 提示
+        'shareInDevelopment'.tr); // 分享功能开发中
   }
 }
diff --git a/lib/modules/picture_translation/views/picture_translation_view.dart b/lib/modules/picture_translation/views/picture_translation_view.dart
index 491204cc0..b53acb156 100644
--- a/lib/modules/picture_translation/views/picture_translation_view.dart
+++ b/lib/modules/picture_translation/views/picture_translation_view.dart
@@ -21,8 +21,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
   Widget build(BuildContext context) {
     final isDarkMode = Theme.of(context).brightness == Brightness.dark;
     return Scaffold(
-      backgroundColor:
-          isDarkMode ? AppColors.darkBackground : Colors.grey[50],
+      backgroundColor: isDarkMode ? AppColors.darkBackground : Colors.grey[50],
       appBar: _buildAppBar(isDarkMode),
       body: SafeArea(
         child: Obx(() {
@@ -85,7 +84,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
         IconButton(
           icon: const Icon(Icons.history),
           onPressed: _showHistoryBottomSheet,
-          tooltip: 'historyRecords'.tr, //历史记录
+          tooltip: 'historyRecords'.tr, // 历史记录
         ),
         PopupMenuButton<String>(
           onSelected: _handleMenuAction,
@@ -157,12 +156,11 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           Text(
-            '选择图片来源'.tr, //选择图片来源
+            'selectImageSource'.tr, // 选择图片来源
             style: TextStyle(
               fontSize: 16.sp,
               fontWeight: FontWeight.w600,
-              color:
-                  Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
+              color: Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
             ),
           ),
           SizedBox(height: 12.h),
@@ -277,12 +275,11 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
           Padding(
             padding: EdgeInsets.all(16.w),
             child: Text(
-              '图片预览',
+              'imagePreview'.tr, // 图片预览
               style: TextStyle(
                 fontSize: 16.sp,
                 fontWeight: FontWeight.w600,
-                color:
-                    Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
+                color: Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
               ),
             ),
           ),
@@ -377,8 +374,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
           ),
         );
       case ProcessingStatus.error:
-        return Icon(Icons.error_outline,
-            color: AppColors.error, size: 20.sp);
+        return Icon(Icons.error_outline, color: AppColors.error, size: 20.sp);
       case ProcessingStatus.idle:
         return Icon(Icons.check_circle_outline,
             color: AppColors.success, size: 20.sp);
@@ -423,25 +419,24 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
           Padding(
             padding: EdgeInsets.all(16.w),
             child: Text(
-              '翻译结果',
+              'translationResult'.tr, // 翻译结果
               style: TextStyle(
                 fontSize: 16.sp,
                 fontWeight: FontWeight.w600,
-                color:
-                    Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
+                color: Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
               ),
             ),
           ),
           if (controller.sourceText.value.isNotEmpty)
             _buildTextCard(
-              '识别结果',
+              'recognitionResult'.tr, // 识别结果
               controller.sourceText.value,
               controller.sourceLanguageChineseName.value,
               Colors.blue,
             ),
           if (controller.translatedText.value.isNotEmpty)
             _buildTextCard(
-              '翻译结果',
+              'translationResult'.tr, // 翻译结果
               controller.translatedText.value,
               controller.targetLanguageChineseName.value,
               Colors.green,
@@ -449,22 +444,22 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
           if (controller.translatedImageBytes.value != null) ...[
             Padding(
               padding: EdgeInsets.symmetric(horizontal: 16.w),
-            child: Text(
-              '翻译后的图片预览',
-              style: TextStyle(
-                fontSize: 14.sp,
-                fontWeight: FontWeight.w600,
-                color:
-                    Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
+              child: Text(
+                'translatedImagePreview'.tr, // 翻译后的图片预览
+                style: TextStyle(
+                  fontSize: 14.sp,
+                  fontWeight: FontWeight.w600,
+                  color:
+                      Get.isDarkMode ? AppColors.textPrimary : Colors.black87,
+                ),
               ),
             ),
-          ),
-          SizedBox(height: 8.h),
-          Container(
-            height: 200.h,
-            margin:
-                EdgeInsets.symmetric(horizontal: 16.w).copyWith(bottom: 16.h),
-            decoration: BoxDecoration(
+            SizedBox(height: 8.h),
+            Container(
+              height: 200.h,
+              margin:
+                  EdgeInsets.symmetric(horizontal: 16.w).copyWith(bottom: 16.h),
+              decoration: BoxDecoration(
                 color: Get.isDarkMode
                     ? AppColors.cardBackground
                     : Colors.grey[100],
@@ -491,7 +486,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
                                 size: 48.sp, color: Colors.red[400]),
                             SizedBox(height: 8.h),
                             Text(
-                              '翻译图片加载失败',
+                              'translatedImageLoadFailed'.tr, // 翻译图片加载失败
                               style: TextStyle(
                                   fontSize: 14.sp, color: Colors.red[600]),
                             ),
@@ -517,8 +512,8 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
       decoration: BoxDecoration(
         color: color.withOpacity(Get.isDarkMode ? 0.15 : 0.05),
         borderRadius: BorderRadius.circular(8.r),
-        border: Border.all(
-            color: color.withOpacity(Get.isDarkMode ? 0.3 : 0.2)),
+        border:
+            Border.all(color: color.withOpacity(Get.isDarkMode ? 0.3 : 0.2)),
       ),
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.start,
@@ -538,11 +533,11 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
                 icon: Icon(Icons.copy, size: 18.sp, color: color),
                 onPressed: () {
                   Clipboard.setData(ClipboardData(text: content));
-                  Get.snackbar('success'.tr, 'copied'.tr); // 翻译键代表的中文文本内容
+                  Get.snackbar('success'.tr, 'copied'.tr); // 对应中文：复制成功
                 },
                 padding: EdgeInsets.zero,
                 constraints: const BoxConstraints(),
-                tooltip: 'copy'.tr, // 翻译键代表的中文文本内容
+                tooltip: 'copy'.tr, // 复制
               ),
             ],
           ),
@@ -551,8 +546,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
             content,
             style: TextStyle(
                 fontSize: 15.sp,
-                color:
-                    Get.isDarkMode ? Colors.white70 : Colors.black87,
+                color: Get.isDarkMode ? Colors.white70 : Colors.black87,
                 height: 1.4),
           ),
         ],
@@ -584,7 +578,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
               mainAxisAlignment: MainAxisAlignment.spaceBetween,
               children: [
                 Text(
-                  'translationHistory'.tr, // 翻译键代表的中文文本内容
+                  'translationHistory'.tr, // 翻译历史
                   style: TextStyle(
                     fontSize: 16.sp,
                     fontWeight: FontWeight.w600,
@@ -594,7 +588,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
                 ),
                 TextButton(
                   onPressed: _showHistoryBottomSheet,
-                  child: Text('viewAll'.tr), // 翻译键代表的中文文本内容
+                  child: Text('viewAll'.tr), // 查看全部
                 ),
               ],
             ),
@@ -604,7 +598,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
               padding:
                   EdgeInsets.symmetric(horizontal: 16.w).copyWith(bottom: 16.h),
               child: Text(
-                'noTranslationHistory'.tr, // 翻译键代表的中文文本内容
+                'noTranslationHistory'.tr, // 暂无历史记录
                 style: TextStyle(
                     fontSize: 14.sp,
                     color: Get.isDarkMode
@@ -629,8 +623,9 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
         child: Container(
           width: 40.w,
           height: 40.w,
-          color:
-              Get.isDarkMode ? Colors.white.withOpacity(0.05) : Colors.grey[200],
+          color: Get.isDarkMode
+              ? Colors.white.withOpacity(0.05)
+              : Colors.grey[200],
           child: Icon(Icons.image,
               color: Get.isDarkMode ? Colors.white70 : Colors.grey[400]),
         ),
@@ -642,18 +637,16 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
         style: TextStyle(fontSize: 14.sp),
       ),
       subtitle: Text(
-        '${item.sourceLanguageName} → ${item.targetLanguageName}',
+        '${item.sourceLanguageName.tr} → ${item.targetLanguageName.tr}', // 源语言名/目标语言名
         style: TextStyle(
             fontSize: 12.sp,
-            color:
-                Get.isDarkMode ? AppColors.textSecondary : Colors.grey[600]),
+            color: Get.isDarkMode ? AppColors.textSecondary : Colors.grey[600]),
       ),
       trailing: Text(
         _formatTime(item.timestamp),
         style: TextStyle(
             fontSize: 12.sp,
-            color:
-                Get.isDarkMode ? Colors.white54 : Colors.grey[500]),
+            color: Get.isDarkMode ? Colors.white54 : Colors.grey[500]),
       ),
       onTap: () => _showHistoryDetail(item),
     );
@@ -675,19 +668,16 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
                 mainAxisAlignment: MainAxisAlignment.spaceBetween,
                 children: [
                   Text(
-                    'translationHistory'.tr, // 翻译键代表的中文文本内容
+                    'translationHistory'.tr, // 翻译历史
                     style: TextStyle(
                         fontSize: 18.sp,
                         fontWeight: FontWeight.bold,
-                        color: Get.isDarkMode
-                            ? AppColors.textPrimary
-                            : null),
+                        color: Get.isDarkMode ? AppColors.textPrimary : null),
                   ),
                   IconButton(
                     onPressed: () => Get.back(),
                     icon: Icon(Icons.close,
-                        color:
-                            Get.isDarkMode ? AppColors.textPrimary : null),
+                        color: Get.isDarkMode ? AppColors.textPrimary : null),
                   ),
                 ],
               ),
@@ -698,7 +688,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
                 if (controller.historyList.isEmpty) {
                   return Center(
                     child: Text(
-                      'noTranslationHistory'.tr, // 翻译键代表的中文文本内容
+                      'noTranslationHistory'.tr, // 暂无历史记录
                       style: TextStyle(
                           fontSize: 16.sp,
                           color: Get.isDarkMode
@@ -745,13 +735,18 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
     final difference = now.difference(timestamp);
 
     if (difference.inDays > 0) {
-      return '${difference.inDays}天前';
+      return 'daysAgo'
+          .tr
+          .replaceAll('@days', difference.inDays.toString()); // @days天前
     } else if (difference.inHours > 0) {
-      return '${difference.inHours}小时前';
+      return 'hoursAgo'
+          .tr
+          .replaceAll('@hours', difference.inHours.toString()); // @hours小时前
     } else if (difference.inMinutes > 0) {
-      return '${difference.inMinutes}分钟前';
+      return 'minutesAgo'.tr.replaceAll(
+          '@minutes', difference.inMinutes.toString()); // @minutes分钟前
     } else {
-      return '刚刚';
+      return 'justNow'.tr; // 刚刚
     }
   }
 
@@ -759,7 +754,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
     Get.dialog(
       AlertDialog(
         backgroundColor: Get.isDarkMode ? Colors.grey[900] : Colors.white,
-        title: Text('设置',
+        title: Text('settings'.tr, // 设置
             style: TextStyle(
                 color: Get.isDarkMode ? Colors.white : Colors.black87)),
         content: Column(
@@ -768,16 +763,17 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
             ListTile(
               leading: Icon(Icons.photo_size_select_actual,
                   color: Get.isDarkMode ? Colors.white : null),
-              title: Text('图片质量',
+              title: Text('imageQuality'.tr, // 图片质量
+                  style: TextStyle(
+                      color: Get.isDarkMode ? Colors.white : Colors.black87)),
+              subtitle: Obx(() => Text(
+                  'currentQuality'.tr.replaceAll(
+                      '@value',
+                      controller.imageQuality.value
+                          .toString()), // 当前质量: @value%
                   style: TextStyle(
                       color:
-                          Get.isDarkMode ? Colors.white : Colors.black87)),
-              subtitle:
-                  Obx(() => Text('当前: ${controller.imageQuality.value}%',
-                      style: TextStyle(
-                          color: Get.isDarkMode
-                              ? Colors.white70
-                              : Colors.black54))),
+                          Get.isDarkMode ? Colors.white70 : Colors.black54))),
               onTap: () {
                 Get.back();
                 _showImageQualityDialog();
@@ -786,16 +782,15 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
             ListTile(
               leading: Icon(Icons.photo_size_select_large,
                   color: Get.isDarkMode ? Colors.white : null),
-              title: Text('最大尺寸',
+              title: Text('maxSize'.tr, // 最大尺寸
+                  style: TextStyle(
+                      color: Get.isDarkMode ? Colors.white : Colors.black87)),
+              subtitle: Obx(() => Text(
+                  'currentMaxSize'.tr.replaceAll('@px',
+                      controller.maxImageSize.value.toString()), // 当前: @pxpx
                   style: TextStyle(
                       color:
-                          Get.isDarkMode ? Colors.white : Colors.black87)),
-              subtitle:
-                  Obx(() => Text('当前: ${controller.maxImageSize.value}px',
-                      style: TextStyle(
-                          color: Get.isDarkMode
-                              ? Colors.white70
-                              : Colors.black54))),
+                          Get.isDarkMode ? Colors.white70 : Colors.black54))),
               onTap: () {
                 Get.back();
                 _showImageSizeDialog();
@@ -806,7 +801,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
         actions: [
           TextButton(
             onPressed: () => Get.back(),
-            child: Text('关闭',
+            child: Text('close'.tr, // 关闭
                 style: TextStyle(
                     color: Get.isDarkMode ? Colors.white70 : Colors.black54)),
           ),
@@ -819,13 +814,17 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
     Get.dialog(
       AlertDialog(
         backgroundColor: Get.isDarkMode ? Colors.grey[900] : Colors.white,
-        title: Text('设置图片质量',
+        title: Text('setImageQuality'.tr, // 设置图片质量
             style: TextStyle(
                 color: Get.isDarkMode ? Colors.white : Colors.black87)),
         content: Obx(() => Column(
               mainAxisSize: MainAxisSize.min,
               children: [
-                Text('当前质量: ${controller.imageQuality.value}%',
+                Text(
+                    'currentQuality'.tr.replaceAll(
+                        '@value',
+                        controller.imageQuality.value
+                            .toString()), // 当前质量: @value%
                     style: TextStyle(
                         color:
                             Get.isDarkMode ? Colors.white70 : Colors.black54)),
@@ -843,7 +842,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
         actions: [
           TextButton(
             onPressed: () => Get.back(),
-            child: Text('确定',
+            child: Text('confirm'.tr, // 确认
                 style: TextStyle(
                     color: Get.isDarkMode ? Colors.white70 : Colors.black54)),
           ),
@@ -857,7 +856,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
     Get.dialog(
       AlertDialog(
         backgroundColor: Get.isDarkMode ? Colors.grey[900] : Colors.white,
-        title: Text('设置最大尺寸',
+        title: Text('setMaxSize'.tr, // 设置最大尺寸
             style: TextStyle(
                 color: Get.isDarkMode ? Colors.white : Colors.black87)),
         content: Column(
@@ -879,7 +878,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
         actions: [
           TextButton(
             onPressed: () => Get.back(),
-            child: Text('取消',
+            child: Text('cancel'.tr, // 取消
                 style: TextStyle(
                     color: Get.isDarkMode ? Colors.white70 : Colors.black54)),
           ),
@@ -892,16 +891,16 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
     Get.dialog(
       AlertDialog(
         backgroundColor: Get.isDarkMode ? Colors.grey[900] : Colors.white,
-        title: Text('清空历史',
+        title: Text('clearHistory'.tr, // 清除历史记录
             style: TextStyle(
                 color: Get.isDarkMode ? Colors.white : Colors.black87)),
-        content: Text('确定要清空所有翻译历史吗？此操作不可撤销。',
+        content: Text('clearHistoryConfirm'.tr, // 确定要清除所有翻译历史记录吗？此操作无法撤销。
             style: TextStyle(
                 color: Get.isDarkMode ? Colors.white70 : Colors.black54)),
         actions: [
           TextButton(
             onPressed: () => Get.back(),
-            child: Text('取消',
+            child: Text('cancel'.tr, // 取消
                 style: TextStyle(
                     color: Get.isDarkMode ? Colors.white70 : Colors.black54)),
           ),
@@ -910,7 +909,8 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
               controller.clearHistory();
               Get.back();
             },
-            child: Text('确定', style: TextStyle(color: AppColors.error)),
+            child: Text('confirm'.tr, // 确认
+                style: TextStyle(color: AppColors.error)),
           ),
         ],
       ),
@@ -923,11 +923,10 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
       height: 200.h,
       margin: EdgeInsets.symmetric(horizontal: 16.w).copyWith(bottom: 16.h),
       decoration: BoxDecoration(
-        color:
-            Get.isDarkMode ? AppColors.cardBackground : Colors.grey[100],
+        color: Get.isDarkMode ? AppColors.cardBackground : Colors.grey[100],
         borderRadius: BorderRadius.circular(8.r),
-        border:
-            Border.all(color: Get.isDarkMode ? Colors.white12 : Colors.grey[300]!),
+        border: Border.all(
+            color: Get.isDarkMode ? Colors.white12 : Colors.grey[300]!),
       ),
       child: file == null
           ? Center(
@@ -936,10 +935,11 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
                 children: [
                   Icon(Icons.image_outlined,
                       size: 48.sp,
-                      color: Get.isDarkMode ? Colors.white54 : Colors.grey[400]),
+                      color:
+                          Get.isDarkMode ? Colors.white54 : Colors.grey[400]),
                   SizedBox(height: 8.h),
                   Text(
-                    '请选择图片',
+                    'pleaseSelectImage'.tr, // 请选择图片
                     style: TextStyle(
                         fontSize: 14.sp,
                         color: Get.isDarkMode
@@ -967,7 +967,7 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
                               size: 48.sp, color: Colors.red[400]),
                           SizedBox(height: 8.h),
                           Text(
-                            '图片加载失败',
+                            'imageLoadFailed'.tr, // 图片加载失败
                             style: TextStyle(
                                 fontSize: 14.sp,
                                 color: Get.isDarkMode
@@ -985,11 +985,15 @@ class PictureTranslationView extends GetView<PictureTranslationController> {
   }
 
   Widget _buildSourceTextBox() {
-    return _buildTextBox('识别结果', controller.sourceText.value);
+    return _buildTextBox(
+        'recognitionResult'.tr, // 识别结果
+        controller.sourceText.value);
   }
 
   Widget _buildTranslatedTextBox() {
-    return _buildTextBox('翻译结果', controller.translatedText.value);
+    return _buildTextBox(
+        'translationResult'.tr, // 翻译结果
+        controller.translatedText.value);
   }
 
   Widget _buildTextBox(String title, String content) {
diff --git a/lib/modules/text_translation/controllers/text_translation_controller.dart b/lib/modules/text_translation/controllers/text_translation_controller.dart
index 8b4b1ed5e..131a560f1 100644
--- a/lib/modules/text_translation/controllers/text_translation_controller.dart
+++ b/lib/modules/text_translation/controllers/text_translation_controller.dart
@@ -257,8 +257,8 @@ class TextTranslationController extends GetxController {
         if (detectedAsrCode == null || detectedAsrCode.isEmpty) {
           Logger.error('语种检测失败');
           Get.snackbar(
-            'error'.tr, // 翻译键代表的中文文本内容
-            'languageDetectionFailed'.tr, // 翻译键代表的中文文本内容
+            'error'.tr, // 错误
+            'languageDetectionFailed'.tr, // 语言检测失败
             snackPosition: SnackPosition.TOP,
             backgroundColor: Colors.red.withOpacity(0.9),
             colorText: Colors.white,
@@ -288,8 +288,8 @@ class TextTranslationController extends GetxController {
     } catch (e) {
       Logger.error('翻译失败: $e');
       Get.snackbar(
-        'error'.tr,
-        'translationFailed'.tr,
+        'error'.tr, // 错误
+        'translationFailed'.tr, // 翻译失败
         snackPosition: SnackPosition.TOP,
         backgroundColor: Colors.red.withOpacity(0.9),
         colorText: Colors.white,
diff --git a/lib/modules/text_translation/views/text_translation_view.dart b/lib/modules/text_translation/views/text_translation_view.dart
index 723e3cd48..0c7dc317a 100644
--- a/lib/modules/text_translation/views/text_translation_view.dart
+++ b/lib/modules/text_translation/views/text_translation_view.dart
@@ -99,10 +99,12 @@ class TextTranslationView extends GetView<TextTranslationController> {
     return LanguageSelectorBar(
       sourceText: () => controller.sourceLanguageChineseName.value,
       targetText: () => controller.targetLanguageChineseName.value,
-      onTapSource: () => controller.showLanguageSelector(isSourceLanguage: true),
-      onTapTarget: () => controller.showLanguageSelector(isSourceLanguage: false),
+      onTapSource: () =>
+          controller.showLanguageSelector(isSourceLanguage: true),
+      onTapTarget: () =>
+          controller.showLanguageSelector(isSourceLanguage: false),
       onSwap: controller.swapLanguages,
-      translateLanguageNames: true, // 翻译键代表的中文文本内容
+      translateLanguageNames: true, // 是否翻译语言名称
       fontSizeSp: 15,
     );
   }
diff --git a/lib/modules/translation/middleware/controllers/translation_middleware_controller.dart b/lib/modules/translation/middleware/controllers/translation_middleware_controller.dart
index bf4202e54..ff336f4b7 100644
--- a/lib/modules/translation/middleware/controllers/translation_middleware_controller.dart
+++ b/lib/modules/translation/middleware/controllers/translation_middleware_controller.dart
@@ -91,7 +91,7 @@ class TranslationMiddlewareController extends GetxController {
   void navigateToTranslationFeature(TranslationOption option) {
     // 不可用则提示用户连接设备
     if (!isOptionEnabled(option)) {
-      // 翻译键代表的中文文本内容
+      // 连接设备 / 请连接 Voitrans 设备
       Get.snackbar('connectDevice'.tr,
           'pleaseConnectDeepSoundDevice'.tr, // 连接设备 / 请连接 Voitrans 设备
           snackPosition: SnackPosition.TOP,
diff --git a/lib/modules/translation/views/dialogs/language_selection_dialog.dart b/lib/modules/translation/views/dialogs/language_selection_dialog.dart
index 6bd5be25d..ccef8f120 100644
--- a/lib/modules/translation/views/dialogs/language_selection_dialog.dart
+++ b/lib/modules/translation/views/dialogs/language_selection_dialog.dart
@@ -65,8 +65,8 @@ class LanguageSelectionDialog {
                 padding: EdgeInsets.symmetric(horizontal: 8.w),
                 child: Text(
                   isSource
-                      ? 'selectSourceLanguage'.tr // 翻译键代表的中文文本内容
-                      : 'selectTargetLanguage'.tr, // 翻译键代表的中文文本内容
+                      ? 'selectSourceLanguage'.tr // 选择源语言
+                      : 'selectTargetLanguage'.tr, // 选择目标语言
                   style: TextStyle(
                     fontSize: 18.sp, // 调整字号
                     fontWeight: FontWeight.w600, // 使用数字字重
@@ -94,7 +94,7 @@ class LanguageSelectionDialog {
                             : displayLanguages[
                                 hasAutoDetect ? index - 1 : index];
                         final displayText = isAutoDetectItem
-                            ? 'autoDetect'.tr // 翻译键代表的中文文本内容
+                            ? 'autoDetect'.tr // 自动检测
                             : (translateLanguageNames
                                 ? valueText.tr
                                 : valueText);
@@ -196,7 +196,7 @@ class LanguageSelectionDialog {
                 child: TextButton(
                   onPressed: () => Get.back(),
                   child: Text(
-                    'cancel'.tr, // 翻译键代表的中文文本内容
+                    'cancel'.tr, // 取消
                     style: TextStyle(
                       color: isDarkMode ? const Color(0xFF6200EE) : Colors.blue,
                     ),
diff --git a/lib/modules/translation/views/translation_view.dart b/lib/modules/translation/views/translation_view.dart
index 595126454..75df6b81b 100644
--- a/lib/modules/translation/views/translation_view.dart
+++ b/lib/modules/translation/views/translation_view.dart
@@ -314,7 +314,7 @@ class TranslationView extends GetView<TranslationController> {
                 onTapTarget: () =>
                     LanguageSelectionDialog.show(false, isDarkMode),
                 onSwap: controller.swapLanguages,
-                translateLanguageNames: true, // 翻译键代表的中文文本内容
+                translateLanguageNames: true, // 是否翻译语言名称
                 fontSizeSp: 15,
                 targetSuffix: controller.currentMode.value == 'call'
                     ? Icon(
@@ -1019,7 +1019,7 @@ class TranslationView extends GetView<TranslationController> {
         onTapSource: () => LanguageSelectionDialog.show(true, isDarkMode),
         onTapTarget: () => LanguageSelectionDialog.show(false, isDarkMode),
         onSwap: controller.swapLanguages,
-        translateLanguageNames: true, // 翻译键代表的中文文本内容
+        translateLanguageNames: true, // 是否翻译语言名称
         fontSizeSp: 15,
       ),
     );
diff --git a/lib/modules/translation/views/widgets/translation_item_widget.dart b/lib/modules/translation/views/widgets/translation_item_widget.dart
index 56ae1b264..38840b00c 100644
--- a/lib/modules/translation/views/widgets/translation_item_widget.dart
+++ b/lib/modules/translation/views/widgets/translation_item_widget.dart
@@ -140,7 +140,7 @@ class TranslationItemWidget extends GetView<TranslationController> {
                             child: Container(
                               padding: EdgeInsets.all(4.w),
                               child: Tooltip(
-                                message: 'copy'.tr, // 翻译键代表的中文文本内容
+                                message: 'copy'.tr, // 复制
                                 child: Icon(
                                   Icons.copy,
                                   size: 20.sp,
@@ -169,7 +169,7 @@ class TranslationItemWidget extends GetView<TranslationController> {
                             child: Container(
                               padding: EdgeInsets.all(4.w),
                               child: Tooltip(
-                                message: 'delete'.tr, // 翻译键代表的中文文本内容
+                                message: 'delete'.tr, // 删除
                                 child: Icon(
                                   Icons.delete_outline,
                                   size: 20.sp,
diff --git a/lib/modules/usage/controllers/meeting_stats_controller.dart b/lib/modules/usage/controllers/meeting_stats_controller.dart
index bbcb7f9f6..147c709c7 100644
--- a/lib/modules/usage/controllers/meeting_stats_controller.dart
+++ b/lib/modules/usage/controllers/meeting_stats_controller.dart
@@ -8,34 +8,32 @@ class MeetingStatsController extends GetxController {
 
   final isLoading = false.obs;
   final selectedTabIndex = 0.obs;
-  final selectedTimeRange = '今日'.obs;
-
-  final Rx<MeetingAsrHistoryStats> todayStats =
-      MeetingAsrHistoryStats(
-        userId: '',
-        allAsrCalls: 0,
-        allAudioSeconds: 0,
-        allAudioFileBytes: 0,
-        allTranscriptBytes: 0,
-      ).obs;
-  final Rx<MeetingAsrHistoryStats> weekStats =
-      MeetingAsrHistoryStats(
-        userId: '',
-        allAsrCalls: 0,
-        allAudioSeconds: 0,
-        allAudioFileBytes: 0,
-        allTranscriptBytes: 0,
-      ).obs;
-  final Rx<MeetingAsrHistoryStats> monthStats =
-      MeetingAsrHistoryStats(
-        userId: '',
-        allAsrCalls: 0,
-        allAudioSeconds: 0,
-        allAudioFileBytes: 0,
-        allTranscriptBytes: 0,
-      ).obs;
-
-  final RxList<MeetingAsrDailyStats> historyDaily = <MeetingAsrDailyStats>[].obs;
+  final selectedTimeRange = 'today'.tr.obs; // 今日
+
+  final Rx<MeetingAsrHistoryStats> todayStats = MeetingAsrHistoryStats(
+    userId: '',
+    allAsrCalls: 0,
+    allAudioSeconds: 0,
+    allAudioFileBytes: 0,
+    allTranscriptBytes: 0,
+  ).obs;
+  final Rx<MeetingAsrHistoryStats> weekStats = MeetingAsrHistoryStats(
+    userId: '',
+    allAsrCalls: 0,
+    allAudioSeconds: 0,
+    allAudioFileBytes: 0,
+    allTranscriptBytes: 0,
+  ).obs;
+  final Rx<MeetingAsrHistoryStats> monthStats = MeetingAsrHistoryStats(
+    userId: '',
+    allAsrCalls: 0,
+    allAudioSeconds: 0,
+    allAudioFileBytes: 0,
+    allTranscriptBytes: 0,
+  ).obs;
+
+  final RxList<MeetingAsrDailyStats> historyDaily =
+      <MeetingAsrDailyStats>[].obs;
 
   @override
   void onInit() {
@@ -72,7 +70,8 @@ class MeetingStatsController extends GetxController {
 
       final historyStart = now.subtract(const Duration(days: 7));
       historyDaily.value = await _usageService.getMeetingHistoryStats(
-        startDate: DateTime(historyStart.year, historyStart.month, historyStart.day),
+        startDate:
+            DateTime(historyStart.year, historyStart.month, historyStart.day),
         endDate: DateTime(now.year, now.month, now.day),
       );
 
@@ -88,16 +87,16 @@ class MeetingStatsController extends GetxController {
     selectedTabIndex.value = index;
     switch (index) {
       case 0:
-        selectedTimeRange.value = '今日';
+        selectedTimeRange.value = 'today'.tr; // 今日
         break;
       case 1:
-        selectedTimeRange.value = '本周';
+        selectedTimeRange.value = 'thisWeek'.tr; // 本周
         break;
       case 2:
-        selectedTimeRange.value = '本月';
+        selectedTimeRange.value = 'thisMonth'.tr; // 本月
         break;
       case 3:
-        selectedTimeRange.value = '历史';
+        selectedTimeRange.value = 'history'.tr; // 历史
         break;
     }
   }
@@ -117,15 +116,15 @@ class MeetingStatsController extends GetxController {
 
   String formatDuration(int seconds) {
     if (seconds < 60) {
-      return '$seconds秒';
+      return '$seconds${'seconds'.tr}'; // 秒
     } else if (seconds < 3600) {
       final minutes = seconds ~/ 60;
       final remainingSeconds = seconds % 60;
-      return '$minutes分$remainingSeconds秒';
+      return '$minutes${'minutes'.tr}$remainingSeconds${'seconds'.tr}'; // 分钟秒
     } else {
       final hours = seconds ~/ 3600;
       final minutes = (seconds % 3600) ~/ 60;
-      return '$hours小时$minutes分';
+      return '$hours${'hours'.tr}$minutes${'minutes'.tr}'; // 小时分钟
     }
   }
 
@@ -149,4 +148,3 @@ class MeetingStatsController extends GetxController {
     await loadAllStats();
   }
 }
-
diff --git a/lib/modules/usage/controllers/translation_stats_controller.dart b/lib/modules/usage/controllers/translation_stats_controller.dart
index 099138941..7a3266136 100644
--- a/lib/modules/usage/controllers/translation_stats_controller.dart
+++ b/lib/modules/usage/controllers/translation_stats_controller.dart
@@ -9,7 +9,7 @@ class TranslationStatsController extends GetxController {
 
   final isLoading = false.obs;
   final selectedTabIndex = 0.obs;
-  final selectedTimeRange = '今日'.obs;
+  final selectedTimeRange = 'today'.tr.obs; // 今日
 
   final Rx<TranslationUsageStats> todayStats =
       TranslationUsageStats.empty('').obs;
@@ -62,8 +62,8 @@ class TranslationStatsController extends GetxController {
     } catch (e) {
       Logger.error('加载统计数据失败: $e');
       Get.snackbar(
-        '加载失败',
-        '统计数据加载失败，请稍后重试',
+        'loadFailed'.tr, // 加载失败
+        'statsLoadFailedTryLater'.tr, // 统计数据加载失败，请稍后重试
         snackPosition: SnackPosition.TOP,
         backgroundColor: Get.theme.colorScheme.error.withValues(alpha: 0.1),
         colorText: Get.theme.colorScheme.error,
@@ -180,7 +180,7 @@ class TranslationStatsController extends GetxController {
     switch (selectedTabIndex.value) {
       case 0:
         data.add({
-          'label': '今日',
+          'label': 'today'.tr, // 今日
           'apiCalls': todayStats.value.totalApiCalls,
           'cost': 0.0,
           'characters': todayStats.value.totalCharacterCount,
@@ -188,7 +188,7 @@ class TranslationStatsController extends GetxController {
         break;
       case 1:
         data.add({
-          'label': '本周',
+          'label': 'thisWeek'.tr, // 本周
           'apiCalls': weekStats.value.totalApiCalls,
           'cost': 0.0,
           'characters': weekStats.value.totalCharacterCount,
@@ -196,7 +196,7 @@ class TranslationStatsController extends GetxController {
         break;
       case 2:
         data.add({
-          'label': '本月',
+          'label': 'thisMonth'.tr, // 本月
           'apiCalls': monthStats.value.totalApiCalls,
           'cost': 0.0,
           'characters': monthStats.value.totalCharacterCount,
@@ -222,16 +222,16 @@ class TranslationStatsController extends GetxController {
 
     switch (index) {
       case 0:
-        selectedTimeRange.value = '今日';
+        selectedTimeRange.value = 'today'.tr; // 今日
         break;
       case 1:
-        selectedTimeRange.value = '本周';
+        selectedTimeRange.value = 'thisWeek'.tr; // 本周
         break;
       case 2:
-        selectedTimeRange.value = '本月';
+        selectedTimeRange.value = 'thisMonth'.tr; // 本月
         break;
       case 3:
-        selectedTimeRange.value = '历史';
+        selectedTimeRange.value = 'history'.tr; // 历史
         break;
     }
 
@@ -258,8 +258,8 @@ class TranslationStatsController extends GetxController {
   void cleanupOldData() {
     _usageService.cleanupOldData();
     Get.snackbar(
-      '清理完成',
-      '已清理90天前的过期数据',
+      'cleanupComplete'.tr, // 清理完成
+      'cleanedOldData'.tr, // 已清理90天前的过期数据
       snackPosition: SnackPosition.TOP,
       backgroundColor: Get.theme.colorScheme.primary.withValues(alpha: 0.1),
       colorText: Get.theme.colorScheme.primary,
@@ -269,8 +269,8 @@ class TranslationStatsController extends GetxController {
   Future<void> exportStats() async {
     try {
       Get.snackbar(
-        '导出功能',
-        '数据导出功能正在开发中',
+        'exportFeature'.tr, // 导出功能
+        'exportInDevelopment'.tr, // 数据导出功能正在开发中
         snackPosition: SnackPosition.TOP,
         backgroundColor: Get.theme.colorScheme.primary.withValues(alpha: 0.1),
         colorText: Get.theme.colorScheme.primary,
@@ -282,15 +282,15 @@ class TranslationStatsController extends GetxController {
 
   String formatDuration(int seconds) {
     if (seconds < 60) {
-      return '$seconds秒';
+      return '$seconds${'seconds'.tr}'; // 秒
     } else if (seconds < 3600) {
       final minutes = seconds ~/ 60;
       final remainingSeconds = seconds % 60;
-      return '$minutes分$remainingSeconds秒';
+      return '$minutes${'minutes'.tr}$remainingSeconds${'seconds'.tr}'; // 分钟秒
     } else {
       final hours = seconds ~/ 3600;
       final minutes = (seconds % 3600) ~/ 60;
-      return '$hours小时$minutes分';
+      return '$hours${'hours'.tr}$minutes${'minutes'.tr}'; // 小时分钟
     }
   }
 
diff --git a/lib/modules/usage/views/aichat_stats_view.dart b/lib/modules/usage/views/aichat_stats_view.dart
index a04fe6c44..728bc180f 100644
--- a/lib/modules/usage/views/aichat_stats_view.dart
+++ b/lib/modules/usage/views/aichat_stats_view.dart
@@ -29,7 +29,7 @@ class AiChatStatsView extends GetView<AiChatStatsController> {
       backgroundColor: isDarkMode ? AppColors.darkBackground : Colors.white,
       elevation: 0.5,
       title: Text(
-        'AI chat',
+        'aiChat'.tr, // AI聊天
         style: TextStyle(
             fontSize: 17.sp,
             fontWeight: FontWeight.w600,
@@ -70,7 +70,7 @@ class AiChatStatsView extends GetView<AiChatStatsController> {
               SizedBox(width: 8.w),
               Expanded(
                 child: Text(
-                  'AI聊天积分',
+                  'remainingQuota'.tr,
                   style: TextStyle(
                       fontSize: 16.sp,
                       fontWeight: FontWeight.w600,
diff --git a/lib/modules/usage/views/meeting_stats_view.dart b/lib/modules/usage/views/meeting_stats_view.dart
index 63ea4897a..140a40447 100644
--- a/lib/modules/usage/views/meeting_stats_view.dart
+++ b/lib/modules/usage/views/meeting_stats_view.dart
@@ -31,7 +31,7 @@ class MeetingStatsView extends GetView<MeetingStatsController> {
       backgroundColor: isDarkMode ? AppColors.darkBackground : Colors.white,
       elevation: 0.5,
       title: Text(
-        '会议统计',
+        'meetingStats'.tr, // 会议统计
         style: TextStyle(
             fontSize: 17.sp,
             fontWeight: FontWeight.w600,
@@ -91,7 +91,7 @@ class MeetingStatsView extends GetView<MeetingStatsController> {
               SizedBox(width: 8.w),
               Expanded(
                 child: Text(
-                  '会议积分',
+                  'remainingQuota'.tr,
                   style: TextStyle(
                       fontSize: 16.sp,
                       fontWeight: FontWeight.w600,
@@ -127,10 +127,10 @@ class MeetingStatsView extends GetView<MeetingStatsController> {
       ),
       child: Obx(() => Row(
             children: [
-              _buildTimeRangeTab('今日', 0, isDarkMode),
-              _buildTimeRangeTab('本周', 1, isDarkMode),
-              _buildTimeRangeTab('本月', 2, isDarkMode),
-              _buildTimeRangeTab('历史', 3, isDarkMode),
+              _buildTimeRangeTab('today'.tr, 0, isDarkMode), // 今日
+              _buildTimeRangeTab('thisWeek'.tr, 1, isDarkMode), // 本周
+              _buildTimeRangeTab('thisMonth'.tr, 2, isDarkMode), // 本月
+              _buildTimeRangeTab('history'.tr, 3, isDarkMode), // 历史
             ],
           )),
     );
@@ -186,7 +186,7 @@ class MeetingStatsView extends GetView<MeetingStatsController> {
               Icon(Icons.dashboard, color: AppColors.primary, size: 20.sp),
               SizedBox(width: 8.w),
               Obx(() => Text(
-                    '${controller.selectedTimeRange.value}概览',
+                    '${controller.selectedTimeRange.value}${'overview'.tr}',
                     style: TextStyle(
                         fontSize: 16.sp,
                         fontWeight: FontWeight.w600,
@@ -199,13 +199,13 @@ class MeetingStatsView extends GetView<MeetingStatsController> {
             children: [
               Expanded(
                   child: _buildStatItem(
-                      'ASR调用次数',
+                      'asrApiCalls'.tr, // ASR调用次数
                       controller.formatNumber(stats.allAsrCalls),
                       Icons.api,
                       isDarkMode)),
               Expanded(
                   child: _buildStatItem(
-                      '音频总时长',
+                      'totalAudioDuration'.tr, // 音频总时长
                       controller.formatDuration(stats.allAudioSeconds),
                       Icons.mic,
                       isDarkMode)),
@@ -216,13 +216,13 @@ class MeetingStatsView extends GetView<MeetingStatsController> {
             children: [
               Expanded(
                   child: _buildStatItem(
-                      '音频文件大小',
+                      'audioFileSize'.tr, // 音频文件大小
                       controller.formatBytes(stats.allAudioFileBytes),
                       Icons.folder,
                       isDarkMode)),
               Expanded(
                   child: _buildStatItem(
-                      '转写字节',
+                      'transcriptBytes'.tr, // 转写字节
                       controller.formatNumber(stats.allTranscriptBytes),
                       Icons.text_snippet,
                       isDarkMode)),
diff --git a/lib/modules/usage/views/translation_stats_view.dart b/lib/modules/usage/views/translation_stats_view.dart
index 6fc3c706c..3600000b0 100644
--- a/lib/modules/usage/views/translation_stats_view.dart
+++ b/lib/modules/usage/views/translation_stats_view.dart
@@ -36,7 +36,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
       title: GestureDetector(
         onTap: controller.onTitleTap,
         child: Text(
-          '翻译统计',
+          'translationStats'.tr, //
           style: TextStyle(
             fontSize: 17.sp,
             fontWeight: FontWeight.w600,
@@ -143,7 +143,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
               SizedBox(width: 8.w),
               Expanded(
                 child: Text(
-                  '翻译积分',
+                  'remainingQuota'.tr,
                   style: TextStyle(
                       fontSize: 16.sp,
                       fontWeight: FontWeight.w600,
@@ -180,10 +180,10 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
       ),
       child: Obx(() => Row(
             children: [
-              _buildTimeRangeTab('今日', 0, isDarkMode),
-              _buildTimeRangeTab('本周', 1, isDarkMode),
-              _buildTimeRangeTab('本月', 2, isDarkMode),
-              _buildTimeRangeTab('历史', 3, isDarkMode),
+              _buildTimeRangeTab('today'.tr, 0, isDarkMode), // 今日
+              _buildTimeRangeTab('thisWeek'.tr, 1, isDarkMode), // 本周
+              _buildTimeRangeTab('thisMonth'.tr, 2, isDarkMode), // 本月
+              _buildTimeRangeTab('history'.tr, 3, isDarkMode), // 历史
             ],
           )),
     );
@@ -245,7 +245,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
               ),
               SizedBox(width: 8.w),
               Text(
-                '当前会话统计',
+                'currentSessionStats'.tr, // 当前会话统计
                 style: TextStyle(
                   fontSize: 16.sp,
                   fontWeight: FontWeight.w600,
@@ -259,7 +259,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                 children: [
                   Expanded(
                     child: _buildStatItem(
-                      '翻译次数',
+                      'translationCount'.tr, // 翻译次数
                       controller.realtimeStats.translationCount.toString(),
                       Icons.translate,
                       isDarkMode,
@@ -267,8 +267,8 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                   ),
                   Expanded(
                     child: _buildStatItem(
-                      '会话时长',
-                      '${controller.realtimeStats.sessionDurationMinutes}分钟',
+                      'sessionDuration'.tr, // 会话时长
+                      '${controller.realtimeStats.sessionDurationMinutes}${'minutes'.tr}',
                       Icons.timer,
                       isDarkMode,
                     ),
@@ -280,7 +280,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                 children: [
                   Expanded(
                     child: _buildStatItem(
-                      '字符数',
+                      'characters'.tr, // 字符数
                       controller.formatNumber(
                         controller.realtimeStats.sourceCharacters +
                             controller.realtimeStats.targetCharacters,
@@ -291,7 +291,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                   ),
                   Expanded(
                     child: _buildStatItem(
-                      '录音时长',
+                      'recordingDuration'.tr, // 录音时长
                       controller.formatDuration(
                           controller.realtimeStats.recordingDuration),
                       Icons.mic,
@@ -331,7 +331,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
               ),
               SizedBox(width: 8.w),
               Obx(() => Text(
-                    '${controller.selectedTimeRange.value}概览',
+                    '${controller.selectedTimeRange.value}${'overview'.tr}',
                     style: TextStyle(
                       fontSize: 16.sp,
                       fontWeight: FontWeight.w600,
@@ -345,7 +345,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                 children: [
                   Expanded(
                     child: _buildStatItem(
-                      '总调用次数',
+                      'totalApiCalls'.tr, // 总调用次数
                       controller
                           .formatNumber(controller.currentStats.totalApiCalls),
                       Icons.api,
@@ -359,7 +359,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                 children: [
                   Expanded(
                     child: _buildStatItem(
-                      '会话数量',
+                      'sessionCount'.tr, // 会话数量
                       controller.currentStats.sessionCount.toString(),
                       Icons.chat,
                       isDarkMode,
@@ -367,7 +367,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                   ),
                   Expanded(
                     child: _buildStatItem(
-                      '总字符数',
+                      'totalCharacters'.tr, // 总字符数
                       controller.formatNumber(
                           controller.currentStats.totalCharacterCount),
                       Icons.text_snippet,
@@ -437,7 +437,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
               ),
               SizedBox(width: 8.w),
               Text(
-                'API调用统计',
+                'apiCallStats'.tr, // API调用统计
                 style: TextStyle(
                   fontSize: 16.sp,
                   fontWeight: FontWeight.w600,
@@ -450,19 +450,25 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
           Obx(() => Column(
                 children: [
                   _buildApiCallRow(
-                      '翻译API',
+                      'translationApi'.tr, // 翻译API
                       controller.currentStats.translationApiCalls,
                       Icons.translate,
                       isDarkMode),
                   SizedBox(height: 12.h),
-                  _buildApiCallRow('语音识别', controller.currentStats.asrApiCalls,
-                      Icons.mic, isDarkMode),
+                  _buildApiCallRow(
+                      'asr'.tr,
+                      controller.currentStats.asrApiCalls,
+                      Icons.mic,
+                      isDarkMode),
                   SizedBox(height: 12.h),
-                  _buildApiCallRow('语音合成', controller.currentStats.ttsApiCalls,
-                      Icons.volume_up, isDarkMode),
+                  _buildApiCallRow(
+                      'tts'.tr,
+                      controller.currentStats.ttsApiCalls,
+                      Icons.volume_up,
+                      isDarkMode),
                   SizedBox(height: 12.h),
                   _buildApiCallRow(
-                      'AI摘要',
+                      'aiSummary'.tr, // AI总结
                       controller.currentStats.aiSummaryApiCalls,
                       Icons.summarize,
                       isDarkMode),
@@ -530,7 +536,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
               ),
               SizedBox(width: 8.w),
               Text(
-                '数据量统计',
+                'dataVolumeStats'.tr, // 数据量统计
                 style: TextStyle(
                   fontSize: 16.sp,
                   fontWeight: FontWeight.w600,
@@ -546,7 +552,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                     children: [
                       Expanded(
                         child: _buildStatItem(
-                          '源文本字符',
+                          'sourceTextCharacters'.tr, // 源文本字符
                           controller.formatNumber(
                               controller.currentStats.sourceTextCharacters),
                           Icons.text_fields,
@@ -555,7 +561,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                       ),
                       Expanded(
                         child: _buildStatItem(
-                          'TTS文本字符',
+                          'ttsTextCharacters'.tr, // TTS文本字符
                           controller.formatNumber(
                               controller.currentStats.ttsTextCharacters),
                           Icons.translate,
@@ -569,7 +575,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                     children: [
                       Expanded(
                         child: _buildStatItem(
-                          '有效音频时长',
+                          'effectiveAudioDuration'.tr, // 有效音频时长
                           controller.formatDuration(
                               controller.currentStats.effectiveAudioDuration),
                           Icons.mic,
@@ -578,7 +584,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                       ),
                       Expanded(
                         child: _buildStatItem(
-                          '总会话时长',
+                          'totalSessionDuration'.tr, // 总会话时长
                           controller.formatDuration(
                               controller.currentStats.totalSessionDuration),
                           Icons.volume_up,
@@ -620,7 +626,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
               ),
               SizedBox(width: 8.w),
               Text(
-                '成本统计',
+                'costStats'.tr, // 成本统计
                 style: TextStyle(
                   fontSize: 16.sp,
                   fontWeight: FontWeight.w600,
@@ -642,7 +648,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                       mainAxisAlignment: MainAxisAlignment.spaceBetween,
                       children: [
                         Text(
-                          '${controller.selectedTimeRange.value}预估成本',
+                          '${controller.selectedTimeRange.value}${'estimatedCost'.tr}',
                           style: TextStyle(
                             fontSize: 14.sp,
                             fontWeight: FontWeight.w500,
@@ -666,7 +672,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                     mainAxisAlignment: MainAxisAlignment.spaceBetween,
                     children: [
                       Text(
-                        '日成本预警阈值',
+                        'dailyCostThreshold'.tr, // 日成本预警阈值
                         style: TextStyle(
                           fontSize: 12.sp,
                           color: isDarkMode ? Colors.white70 : Colors.black54,
@@ -687,7 +693,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                     mainAxisAlignment: MainAxisAlignment.spaceBetween,
                     children: [
                       Text(
-                        '月成本预警阈值',
+                        'monthlyCostThreshold'.tr, // 月成本预警阈值
                         style: TextStyle(
                           fontSize: 12.sp,
                           color: isDarkMode ? Colors.white70 : Colors.black54,
@@ -736,7 +742,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
               ),
               SizedBox(width: 8.w),
               Text(
-                '使用行为统计',
+                'usageBehaviorStats'.tr, // 使用行为统计
                 style: TextStyle(
                   fontSize: 16.sp,
                   fontWeight: FontWeight.w600,
@@ -749,14 +755,14 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
           Obx(() => Column(
                 children: [
                   _buildUsageBehaviorRow(
-                    '最常用语言对',
+                    'mostUsedLanguagePair'.tr, // 最常用语言对
                     controller.currentStats.mostUsedLanguagePair,
                     Icons.language,
                     isDarkMode,
                   ),
                   SizedBox(height: 12.h),
                   _buildUsageBehaviorRow(
-                    '最常用模式',
+                    'mostUsedMode'.tr, // 最常用模式
                     controller.currentStats.mostUsedMode,
                     Icons.settings,
                     isDarkMode,
diff --git a/lib/modules/usage/views/usage_view.dart b/lib/modules/usage/views/usage_view.dart
index 814b64ad3..7bf1c8ead 100644
--- a/lib/modules/usage/views/usage_view.dart
+++ b/lib/modules/usage/views/usage_view.dart
@@ -43,7 +43,7 @@ class UsageView extends GetView<UsageController> {
               // 4. 使用生成的导航项
               items: (controller.showAiChat.value
                       ? const [
-                          _NavItem(Icons.chat_bubble_outline, 'AI chat'),
+                          _NavItem(Icons.chat_bubble_outline, 'aiChat'),
                           _NavItem(Icons.translate, 'interpretation'),
                           _NavItem(Icons.people, 'meeting'),
                         ]