reply to的用法是：reply用作名词的意思是“回答，答复”，引申可指“答案”；reply常与介词to连用；当reply指“回答”时，是及物动词；当reply指“答复”时，是不及物动词，如有宾语应加介词to，宾语应该是答复的具体对象；reply后不可接人和that从句。
一、reply to的意思
reply to作动词，意思是：答复;回答
二、双语例句
1.I was unsure how to reply to this question.
我拿不准该如何回答这个问题。
2.He didn't know how to reply to her letter just then.
那时，他不知道如何给她回信。
3.We wait on your reply to our letter.
我们等着你们的回信。
4.He made an intelligent reply to the question.
他对那个问题做了机智的回答。
5.He did not even have the courtesy to reply to my fax.
他连回复我传真的这点儿礼貌都没有。
6.Don't reply to the enemy fire until I give the order.
等我下达命令后再对敌人的火力进行还击。
