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!