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

Bill did me the courtesy of answering the question.

比尔很有礼貌地回答我的问题。

youdao

Bill did me the courtesy of answering the question.

比尔很有礼貌地回答我的问题。

youdao