这是一个星期五的晚上，Larry和李华两人经过一个星期紧张
学习后都很累，现在正在一起吃晚饭。今天李华会学到两个常用语：let off steam和oops。
LL: Wow, it's nice to relax and let off some steam after a long week at work.
LH: 就是啊，放松一下，感觉真好！Larry，你说要let off steam？Steam是蒸气，你还会放气呀？
LL: No, not literally. To let off steam can mean to relax or it can mean to express pent-up feelings, usually of anger.
LH: 原来如此。To let off steam就是放松，也可以是发泄积压在心里的感情，通常是火气。所以你是说一个星期紧张地
