>
讲解文本:
down 失意,低谷,挫败Life is full of ups and downs.人生充满着起起伏伏。He went through a lot of ups and downs.他经历了很多起起伏伏。you look so down today, are you ok?你今天看起来情绪很低落啊,你还好吗?
疯狂练习吧!