How do you do.是用在什么场合?

How do you do.是用在什么场合? How do you do.是用在什么场合? How many books do you have?句中do是代表什么意思?句子在什么情况下才用do? How do you do 什么意思 how do you do 什么意思? How do you do? How Do You Do? how do you do? how do you do How do you do how do you do How do you do how do you do?用在什么场合.该怎么回答 HOW DO YOU DO?的回答是： How do you do?是啥意思 How do you do?和How are you?分别在什么场合使用? How many pen do you have?为什么要加do?在什么情况下加do? 问 how do you do 回答什么?有人说回答也是how do you do~