diff --git a/utils/agent.py b/utils/agent.py
index ead6312..855290a 100644
--- a/utils/agent.py
+++ b/utils/agent.py
@@ -139,7 +139,7 @@ class Part(BaseModel):
 
     type: Literal["thinking", "text"] = Field(..., description="片段类型")
     content: str = Field(..., description="片段内容")
-    timer: Optional[Task] = Field(default=None, description="片段绑定的延时异步任务")
+    task: Optional[Task] = Field(default=None, description="片段绑定的异步任务")
 
 
 class StreamEventsDebouncer:
@@ -207,14 +207,14 @@ class StreamEventsDebouncer:
             # 其余未匹配的所有事件原样透传
             yield event
 
-    def _cancel_timer(self, index: int):
+    def _cancel_task(self, index: int):
         """
-        取消指定索引片段的计时器
+        取消指定索引片段的异步任务
         :param index: 片段索引
         """
         part = self.parts.get(index)
-        if part and part.timer is not None and not part.timer.done():
-            part.timer.cancel()
+        if part and part.task is not None and not part.task.done():
+            part.task.cancel()
 
 
 class Agent: