chore: switch some comments to en

pkg/pipeline/msgtrun/truncators/round.py

@@ -6,17 +6,17 @@ from ....core import entities as core_entities
 
 @truncator.truncator_class('round')
 class RoundTruncator(truncator.Truncator):
-    """前文回合数阶段器"""
+    """Truncate the conversation message chain to adapt to the LLM message length limit."""
 
     async def truncate(self, query: core_entities.Query) -> core_entities.Query:
-        """截断"""
+        """Truncate"""
         max_round = query.pipeline_config['ai']['local-agent']['max-round']
 
         temp_messages = []
 
         current_round = 0
 
-        # 从后往前遍历
+        # Traverse from back to front
         for msg in query.messages[::-1]:
             if current_round < max_round:
                 temp_messages.append(msg)