diff --git a/crawl4ai/async_webcrawler.py b/crawl4ai/async_webcrawler.py
index 1b571b50a..87ceaf736 100644
--- a/crawl4ai/async_webcrawler.py
+++ b/crawl4ai/async_webcrawler.py
@@ -198,7 +198,7 @@ async def __aexit__(self, exc_type, exc_val, exc_tb):
 
     @asynccontextmanager
     async def nullcontext(self):
-        """异步空上下文管理器"""
+        """Async null context manager that yields nothing."""
         yield
 
     async def arun(
diff --git a/deploy/docker/c4ai-code-context.md b/deploy/docker/c4ai-code-context.md
index c18fbc784..8abc68874 100644
--- a/deploy/docker/c4ai-code-context.md
+++ b/deploy/docker/c4ai-code-context.md
@@ -1548,7 +1548,7 @@ class AsyncWebCrawler:
 
     @asynccontextmanager
     async def nullcontext(self):
-        """异步空上下文管理器"""
+        """Async null context manager that yields nothing."""
         yield
 
     async def arun(