请问,How are you How are you doing ,Tom 有什么区别?

请问老师,How is it going?=How are you( ) ( 英语翻译 how are you how are you How are you going how are you how are you feeling how old are you how are you my how are you today? How are you going How are you? how are you 翻译how are you? How are you unique? “How old are you? How tall are you? How are you today? How are you?