how are you ,how are you doing 和what's new 三个句子有区别吗?

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? how are you