做动词：answer=reply to ex: answer the question=reply to the question回答这个问题
做名词：answer=reply ex: the answer to the question= the reply to the question 这个 问题的答案
answer=reply to还是reply?
做动词：answer=reply to ex: answer the question=reply to the question回答这个问题
做名词：answer=reply ex: the answer to the question= the reply to the question 这个 问题的答案