diff --git a/lib/modules/ota_upgrade/controllers/ota_upgrade_controller.dart b/lib/modules/ota_upgrade/controllers/ota_upgrade_controller.dart
index 9e56c02d8..f306bde15 100644
--- a/lib/modules/ota_upgrade/controllers/ota_upgrade_controller.dart
+++ b/lib/modules/ota_upgrade/controllers/ota_upgrade_controller.dart
@@ -123,6 +123,10 @@ class OtaUpgradeController extends GetxController {
   /// 开始更新流程的公共方法
   /// 供视图调用的更新入口点
   Future<void> startUpdate() async {
+    //立即给用户状态反馈
+    showDetailedStatus.value = true;
+    detailedStatus.value = '正在检查设备状态...';
+
     await _startUpdateProcess();
   }
 
diff --git a/lib/modules/translation/controllers/translation_controller.dart b/lib/modules/translation/controllers/translation_controller.dart
index 9b54119e4..f1bfff331 100644
--- a/lib/modules/translation/controllers/translation_controller.dart
+++ b/lib/modules/translation/controllers/translation_controller.dart
@@ -116,6 +116,11 @@ class TranslationController extends GetxController with WidgetsBindingObserver {
   StreamSubscription? _voiceInteractionSubscription;
   Timer? _translationDebounceTimer;
 
+  // 播放防重复机制
+  String? _lastPlayedItemKey; // 最后播放的项目标识
+  int _lastPlayTime = 0; // 最后播放时间
+  static const int _playDebounceInterval = 500; // 防抖间隔：500毫秒
+
   // 底部控制栏高度
   double _bottomBarHeight = 0.0;
 
@@ -1083,7 +1088,30 @@ class TranslationController extends GetxController with WidgetsBindingObserver {
   Future<void> playTranslationItem(TranslationItem item) async {
     if (item.translatedText.isEmpty) return;
 
+    // 防重复点击：如果短时间内重复点击同一项，忽略后续点击
+    final currentTime = DateTime.now().millisecondsSinceEpoch;
+    final itemKey =
+        '${item.sessionId}_${item.timestamp.millisecondsSinceEpoch}';
+
+    // 检查是否是重复点击同一项
+    if (_lastPlayedItemKey == itemKey &&
+        currentTime - _lastPlayTime < _playDebounceInterval) {
+      Logger.info('防重复播放：忽略短时间内的重复点击');
+      return;
+    }
+
+    // 如果正在播放，先停止当前播放
+    if (_ttsService.isSpeaking) {
+      await _ttsService.stop();
+      // 短暂延迟确保停止完成
+      await Future.delayed(const Duration(milliseconds: 100));
+    }
+
     try {
+      // 更新播放记录
+      _lastPlayedItemKey = itemKey;
+      _lastPlayTime = currentTime;
+
       final voiceName =
           _languageManager.getTtsVoiceNameByAsrCode(item.targetLanguageCode) ??
               'en-US-AriaNeural';
@@ -1100,7 +1128,29 @@ class TranslationController extends GetxController with WidgetsBindingObserver {
   Future<void> playText(String text, {String? languageCode}) async {
     if (text.isEmpty) return;
 
+    // 防重复点击：基于文本内容和语言代码生成唯一标识
+    final currentTime = DateTime.now().millisecondsSinceEpoch;
+    final textKey = '${text}_${languageCode ?? targetLanguageCode.value}';
+
+    // 检查是否是重复点击同一文本
+    if (_lastPlayedItemKey == textKey &&
+        currentTime - _lastPlayTime < _playDebounceInterval) {
+      Logger.info('防重复播放：忽略短时间内的重复文本播放请求');
+      return;
+    }
+
+    // 如果正在播放，先停止当前播放
+    if (_ttsService.isSpeaking) {
+      await _ttsService.stop();
+      // 短暂延迟确保停止完成
+      await Future.delayed(const Duration(milliseconds: 100));
+    }
+
     try {
+      // 更新播放记录
+      _lastPlayedItemKey = textKey;
+      _lastPlayTime = currentTime;
+
       final voiceName = languageCode != null
           ? _languageManager.getTtsVoiceNameByAsrCode(languageCode) ??
               'en-US-AriaNeural'