a blue moon 千载难逢的事 Once in a blue moon, her husband brings her gift. 她丈夫居然送她了一份礼物,真是千载难逢的一件事。 kill time 消磨时光 He had nothing in particular to do, so he went for a walk downtown to kill time. 他没有什么特别的事要做,所以他为了消磨时间,去市区散了散步。 call it a day 收工 Why don't we call it a day? I'm really tired. 我们为什么不收工呢?我真的很累了。 against the clock 和时间赛跑 The students were racing against the clock to finish the paper before the deadline. 学生们要赶在时间截止之前努力答完试卷。 更多精彩阅读