why won't you和why don't you有什么区别吗

why won't you和why don't you有什么区别吗 "Why didn't you'和Why don't you什么区别? why don't you…… 与why not you……有什么区别 why not 和why don't 有什么区别啊! why don't you why aren't you 和Why don't you 的区别和用法 why don't you 等于什么 Why don't you+...why not +. Why don't you come____earlier? why don't you sleep why don't you do Why don't you 歌词