How are you?How's it going?What's up?这三种问候都表示同样的意思但是问候的时候分场合

How are you?How's it going?What's up?这三种问候都表示同样的意思但是问候的时候分场合 s'up 能不能表示问候或打招呼的意思?跟what's up有什么区别? 问候的英语句子?how are you how are things?how is goinghow are you g 初次聊天外国人问候what's up的具体回答 how are you 和 what 's up的区别是什么 美国人打招呼的What's up,What's happening,How are you doing,What's g what“s up与what“s going on都可以用来打招呼吗?与how are you一样吗? How is it going?和What's wrong with you?的意思 How's it going?的意思 求外语高手回答：what's up?/ how is it going?/ how do you do , 老外问候 how are you doing ? what's up?what's new,how are you doing?的区别和分别得回答