diff --git a/src-tauri/.gitignore b/src-tauri/.gitignore
index b21bd68..5467e21 100644
--- a/src-tauri/.gitignore
+++ b/src-tauri/.gitignore
@@ -1,6 +1,7 @@
 # Generated by Cargo
 # will have compiled files and executables
 /target/
+/target*/
 
 # Generated by Tauri
 # will have schema files for capabilities auto-completion
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index f8f094d..46b4c89 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -32,12 +32,19 @@ struct Delta {
     content: Option<String>,
 }
 
+#[derive(Serialize, Clone)]
+struct TranslationChunkEvent {
+    request_id: String,
+    chunk: String,
+}
+
 #[tauri::command]
 async fn translate(
     app: AppHandle,
     api_address: String,
     api_key: String,
     payload: TranslationPayload,
+    request_id: String,
 ) -> Result<String, String> {
     let client = Client::new();
     // Ensure URL doesn't have double slashes if api_address ends with /
@@ -55,6 +62,12 @@ async fn translate(
         .await
         .map_err(|e| e.to_string())?;
 
+    let status = res.status();
+    if !status.is_success() {
+        let error_text = res.text().await.unwrap_or_else(|_| format!("HTTP {}", status));
+        return Err(format!("HTTP {}: {}", status, error_text));
+    }
+
     if !payload.stream {
         let text = res.text().await.map_err(|e| e.to_string())?;
         return Ok(text);
@@ -78,7 +91,11 @@ async fn translate(
                     if let Some(choice) = json.choices.get(0) {
                         if let Some(delta) = &choice.delta {
                             if let Some(content) = &delta.content {
-                                app.emit("translation-chunk", content).map_err(|e| e.to_string())?;
+                                let event = TranslationChunkEvent {
+                                    request_id: request_id.clone(),
+                                    chunk: content.clone(),
+                                };
+                                app.emit("translation-chunk", event).map_err(|e| e.to_string())?;
                             }
                         }
                     }
diff --git a/src/components/ConversationView.vue b/src/components/ConversationView.vue
index de0a2d3..e5c5c15 100644
--- a/src/components/ConversationView.vue
+++ b/src/components/ConversationView.vue
@@ -20,6 +20,7 @@ import { useClipboard } from '../composables/useClipboard';
 
 const settings = useSettingsStore();
 const { activeCopyId, copyWithFeedback } = useClipboard();
+interface TranslationChunkEvent { request_id: string; chunk: string; }
 
 // UI States
 const searchQuery = ref('');
@@ -101,6 +102,7 @@ const myInput = ref('');
 const partnerInput = ref('');
 const isTranslating = ref(false);
 const currentStreamingMessageId = ref<string | null>(null);
+const activeStreamRequestId = ref<string | null>(null);
 
 // Dropdowns
 const myToneDropdownOpen = ref(false);
@@ -115,10 +117,14 @@ const handleCreateSession = () => {
 
 let unlisten: (() => void) | null = null;
 onMounted(async () => {
-  unlisten = await listen<string>('translation-chunk', (event) => {
-    if (activeSession.value && currentStreamingMessageId.value) {
+  unlisten = await listen<TranslationChunkEvent>('translation-chunk', (event) => {
+    if (
+      activeSession.value &&
+      currentStreamingMessageId.value &&
+      event.payload.request_id === activeStreamRequestId.value
+    ) {
       settings.updateChatMessage(activeSession.value.id, currentStreamingMessageId.value, {
-        translated: (activeSession.value.messages.find(m => m.id === currentStreamingMessageId.value)?.translated || '') + event.payload
+        translated: (activeSession.value.messages.find(m => m.id === currentStreamingMessageId.value)?.translated || '') + event.payload.chunk
       });
       
       // 优化：只有当正在流式输出的消息是最后一条时，才自动滚动到底部
@@ -207,14 +213,17 @@ const translateMessage = async (sender: 'me' | 'partner', retranslateId?: string
     ],
     stream: settings.enableStreaming
   };
+  const requestId = crypto.randomUUID();
 
   settings.addLog('request', { type: retranslateId ? 'conversation-retranslate' : 'conversation', ...requestBody }, generateCurl(settings.apiBaseUrl, settings.apiKey, requestBody));
 
   try {
+    if (settings.enableStreaming) activeStreamRequestId.value = requestId;
     const response = await invoke<string>('translate', { 
       apiAddress: settings.apiBaseUrl, 
       apiKey: settings.apiKey, 
-      payload: requestBody 
+      payload: requestBody,
+      requestId
     });
 
     if (!settings.enableStreaming) {
@@ -232,6 +241,7 @@ const translateMessage = async (sender: 'me' | 'partner', retranslateId?: string
   } finally {
     isTranslating.value = false;
     currentStreamingMessageId.value = null;
+    activeStreamRequestId.value = null;
     
     // 只有新消息才滚动到底部
     if (!retranslateId) {
@@ -317,6 +327,7 @@ const evaluateMessage = async (messageId: string, force = false) => {
     ],
     stream: false
   };
+  const requestId = crypto.randomUUID();
 
   settings.addLog('request', { type: 'conversation-eval', ...requestBody }, generateCurl(evalApiBaseUrl, evalApiKey, requestBody));
 
@@ -324,7 +335,8 @@ const evaluateMessage = async (messageId: string, force = false) => {
     const response = await invoke<string>('translate', { 
       apiAddress: evalApiBaseUrl, 
       apiKey: evalApiKey, 
-      payload: requestBody 
+      payload: requestBody,
+      requestId
     });
     const fullResponseJson = JSON.parse(response);
     settings.addLog('response', fullResponseJson);
@@ -358,6 +370,7 @@ const refineMessage = async (messageId: string) => {
   if (selectedSuggestions.length === 0) return;
 
   const suggestionsText = selectedSuggestions.map((s: any) => `- ${s.text}`).join('\n');
+  const currentTranslation = msg.translated;
 
   isAuditModalOpen.value = false; // 关闭弹窗开始润色
   settings.updateChatMessage(activeSession.value.id, messageId, { isRefining: true, translated: '' });
@@ -415,18 +428,21 @@ const refineMessage = async (messageId: string) => {
     model: refineModelName,
     messages: [
       { role: "system", content: systemPrompt },
-      { role: "user", content: `[Source Text]\n${msg.original}\n\n[Current Translation]\n${msg.translated}\n\n[Suggestions]\n${suggestionsText}` }
+      { role: "user", content: `[Source Text]\n${msg.original}\n\n[Current Translation]\n${currentTranslation}\n\n[Suggestions]\n${suggestionsText}` }
     ],
     stream: settings.enableStreaming
   };
+  const requestId = crypto.randomUUID();
 
   settings.addLog('request', { type: 'conversation-refine', ...requestBody }, generateCurl(refineApiBaseUrl, refineApiKey, requestBody));
 
   try {
+    if (settings.enableStreaming) activeStreamRequestId.value = requestId;
     const response = await invoke<string>('translate', { 
       apiAddress: refineApiBaseUrl, 
       apiKey: refineApiKey, 
-      payload: requestBody 
+      payload: requestBody,
+      requestId
     });
 
     if (!settings.enableStreaming) {
@@ -442,6 +458,7 @@ const refineMessage = async (messageId: string) => {
   } finally {
     settings.updateChatMessage(activeSession.value.id, messageId, { isRefining: false, evaluation: undefined });
     currentStreamingMessageId.value = null;
+    activeStreamRequestId.value = null;
     
     // 只有当润色的是最后一条消息时才滚动到底部
     const lastMsg = activeSession.value.messages[activeSession.value.messages.length - 1];
diff --git a/src/components/TranslationView.vue b/src/components/TranslationView.vue
index 67f1bf7..fbbe7d9 100644
--- a/src/components/TranslationView.vue
+++ b/src/components/TranslationView.vue
@@ -53,12 +53,14 @@ const currentHistoryId = ref<string | null>(null);
 
 interface Suggestion { id: number; text: string; importance: number; }
 interface EvaluationResult { score: number; analysis: string; suggestions?: Suggestion[]; }
+interface TranslationChunkEvent { request_id: string; chunk: string; }
 
 const evaluationResult = ref<EvaluationResult | null>(null);
 const isEvaluating = ref(false);
 const isRefining = ref(false);
 const selectedSuggestionIds = ref<number[]>([]);
 const appliedSuggestionIds = ref<number[]>([]);
+const activeStreamRequestId = ref<string | null>(null);
 
 const toggleSuggestion = (id: number) => {
   if (!selectedSuggestionIds.value) selectedSuggestionIds.value = [];
@@ -69,9 +71,9 @@ const toggleSuggestion = (id: number) => {
 
 let unlisten: (() => void) | null = null;
 onMounted(async () => {
-  unlisten = await listen<string>('translation-chunk', (event) => {
-    if (isTranslating.value || isRefining.value) {
-      targetText.value += event.payload;
+  unlisten = await listen<TranslationChunkEvent>('translation-chunk', (event) => {
+    if ((isTranslating.value || isRefining.value) && event.payload.request_id === activeStreamRequestId.value) {
+      targetText.value += event.payload.chunk;
     }
   });
 });
@@ -148,11 +150,12 @@ const evaluateTranslation = async () => {
     messages: [ { role: "system", content: evaluationSystemPrompt }, { role: "user", content: evaluationUserPrompt } ],
     stream: false
   };
+  const requestId = crypto.randomUUID();
 
   settings.addLog('request', { type: 'evaluation', ...requestBody }, generateCurl(apiBaseUrl, apiKey, requestBody));
 
   try {
-    const response = await invoke<string>('translate', { apiAddress: apiBaseUrl, apiKey: apiKey, payload: requestBody });
+    const response = await invoke<string>('translate', { apiAddress: apiBaseUrl, apiKey: apiKey, payload: requestBody, requestId });
     try {
       // 解析 API 的原始响应 JSON
       const fullResponseJson = JSON.parse(response);
@@ -209,11 +212,13 @@ const refineTranslation = async () => {
     messages: [ { role: "system", content: refinementSystemPrompt }, { role: "user", content: refinementUserPrompt } ],
     stream: settings.enableStreaming
   };
+  const requestId = crypto.randomUUID();
 
   settings.addLog('request', { type: 'refinement', ...requestBody }, generateCurl(apiBaseUrl, apiKey, requestBody));
 
   try {
-    const response = await invoke<string>('translate', { apiAddress: apiBaseUrl, apiKey: apiKey, payload: requestBody });
+    if (settings.enableStreaming) activeStreamRequestId.value = requestId;
+    const response = await invoke<string>('translate', { apiAddress: apiBaseUrl, apiKey: apiKey, payload: requestBody, requestId });
     
     if (settings.enableStreaming) {
       settings.addLog('response', targetText.value);
@@ -239,6 +244,7 @@ const refineTranslation = async () => {
     targetText.value = `Error: ${errorMsg}`;
   } finally {
     isRefining.value = false;
+    activeStreamRequestId.value = null;
   }
 };
 
@@ -267,11 +273,13 @@ const translate = async () => {
     messages: [ { role: "system", content: systemMessage }, { role: "user", content: userMessage } ],
     stream: settings.enableStreaming
   };
+  const requestId = crypto.randomUUID();
 
   settings.addLog('request', requestBody, generateCurl(settings.apiBaseUrl, settings.apiKey, requestBody));
 
   try {
-    const response = await invoke<string>('translate', { apiAddress: settings.apiBaseUrl, apiKey: settings.apiKey, payload: requestBody });
+    if (settings.enableStreaming) activeStreamRequestId.value = requestId;
+    const response = await invoke<string>('translate', { apiAddress: settings.apiBaseUrl, apiKey: settings.apiKey, payload: requestBody, requestId });
     
     let finalTargetText = '';
     if (settings.enableStreaming) {
@@ -300,6 +308,7 @@ const translate = async () => {
     targetText.value = `Error: ${errorMsg}`;
   } finally {
     isTranslating.value = false;
+    activeStreamRequestId.value = null;
   }
 
   if (settings.enableEvaluation) await evaluateTranslation();
@@ -656,4 +665,4 @@ const translate = async () => {
           </div>
         </div>
       </div>
-</template>
\ No newline at end of file
+</template>