As a courtesy, you should always search the list first to see if the question you want to ask is already answered.

出于礼貌，您总是应该先搜索这个列表，看看您想问的问题是否已经被回答了，以免重复的问题干扰别人。

youdao

As a courtesy, you should always search the list first to see if the question you want to ask is already answered.

出于礼貌，您总是应该先搜索这个列表，看看您想问的问题是否已经被回答了，以免重复的问题干扰别人。

youdao