diff --git a/zh-cn/device-dev/subsystems/subsys-multimedia-camera-preview-guide.md b/zh-cn/device-dev/subsystems/subsys-multimedia-camera-preview-guide.md
index 5a2309b89f816cf4ba5a49e9acb5b017fb8ef19e..ea74d948802f72133205c68e9987441d5fbe1ff7 100755
--- a/zh-cn/device-dev/subsystems/subsys-multimedia-camera-preview-guide.md
+++ b/zh-cn/device-dev/subsystems/subsys-multimedia-camera-preview-guide.md
@@ -36,6 +36,6 @@
 3. 开始和结束预览。
      
    ```
-   stateCallback->camera_->TriggerLoopingCapture(*fc); // start previewing
-   stateCallback->camera_->StopLoopingCapture(); // stop previewing
+   stateCallback->camera_->TriggerLoopingCapture(*fc); // 开始预览
+   stateCallback->camera_->StopLoopingCapture(); // 停止预览
    ```