diff --git a/app/src/main/java/com/nova/brain/glass/helper/AsrHelper.kt b/app/src/main/java/com/nova/brain/glass/helper/AsrHelper.kt
index afafb6b..61b2f19 100644
--- a/app/src/main/java/com/nova/brain/glass/helper/AsrHelper.kt
+++ b/app/src/main/java/com/nova/brain/glass/helper/AsrHelper.kt
@@ -34,8 +34,6 @@ object AsrHelper : OfflineCmdListener {
 
     // 拼接每次识别会话中的中间结果
     private var currentPartial = ""
-    // 拼接跨多次识别的最终结果
-    private val sessionBuilder = StringBuilder()
 
     /** 当前页面的场景标识，由各 Activity 在 onResume/onPause 中维护 */
     var scene: String = "home"
@@ -107,7 +105,6 @@ object AsrHelper : OfflineCmdListener {
 
             override fun onStart(taskId: String) {
                 currentPartial = ""
-                sessionBuilder.clear()
                 Log.d(TAG, "ASR started: $taskId")
             }
 
@@ -119,7 +116,6 @@ object AsrHelper : OfflineCmdListener {
 
             override fun onFinalResult(taskId: String, text: String) {
                 // 将最终结果追加拼接到会话字符串
-                sessionBuilder.append(text)
                 isMicRunning = false
                 // 滚动更新当前识别中间结果
                 currentPartial += text
@@ -173,7 +169,6 @@ object AsrHelper : OfflineCmdListener {
         asr = null
         sdk = null
         isConnected = false
-        sessionBuilder.clear()
         Log.d(TAG, "AsrHelper closed")
     }
 }
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