us and down和ups and downs有什么区别?
问题描述:
us and down和ups and downs有什么区别?
答
换句话说,ups and downs就是起伏、波折.这是每个人都难免会遇到的.下面就是一个例子.例句-1:Mister White sure has had his ups and downs.He's made a fortune three times and then lost it all.But he doesn't ha...