reply to 与respond to的区别

eply较正式,除了后面跟直接引语或以that开始的句子外,一般只用作不及物动词,后面连用to,表示回答别人的问题（话语、信件、祝贺、攻击等）特别是在写信中常用此句开头：Thank you for your reply.Do you have any suggestions as to how we should reply to his questions?关于如何回答他的问题,你有没有什么建议?
respond 作“答”、“回答”讲,为正式用语,常与介词to连用.通常只对号召、职责、请求、紧急情况等做出反应或回应.She never responded to his opinion.她从未对他的意见作出过反应./I greeted him,but he didn't respond.我跟他打招呼,但他没理我.