let off

英 [let ɒf]

美 [let ɔːf]

准许…不必做（或不必工作）; 对…宽大处理; 使（炸药等）爆炸; 开（枪、炮等）

柯林斯词典

PHRASAL VERB 准许…不必做（或不必工作）
If someone in authorityletsyouoffa task or duty, they give you permission not to do it.
1. The theatre management kindly let me off a couple of performances to go to Yorkshire...
  剧院领导很体谅地同意我休演几场抽身到约克郡去。
2. In those days they didn't let you off work to go home very often.
  在当时，他们并不经常准许请假回家。
PHRASAL VERB 对…宽大处理
If youletsomeoneoff, you give them a lighter punishment than they expect or no punishment at all.
1. Because he was a Christian, the judge let him off...
  由于他是基督徒，法官便对他从轻发落。
2. When police realised who he was, they asked for an autograph and let him off with a warning.
  警察知道他是谁后，便向他要了签名，然后只给了他个警告就放他走了。
PHRASAL VERB 使（炸药等）爆炸；开（枪、炮等）
If youlet offan explosive or a gun, you explode or fire it.
1. A resident of his neighbourhood had let off fireworks to celebrate the Revolution.
  他家附近的一个居民燃放了烟花庆祝革命胜利。

verb

grant exemption or release to
1. Please excuse me from this class
Synonym:excuserelieveexempt

Jane: Come on. I think you need to let off some steam.
简：来吧，我觉得你应该把愤怒发泄出来。
The terrorists let off a bomb near the building.
恐怖分子在这座楼房附近引爆了一枚炸弹。
I walk while draw, when I am moved, I ever do not let off this primitive impulsion.
我边走边画，感动了我时，我从不放过这个原始冲动。
Recently we have had a heated discussion on whether we can let off fireworks on Spring Festival or not.
最近我们就是否可以在春节期间燃放烟花爆竹举行了讨论。
She was let off with a warning.
她没被处罚，只是受了个警告。
When I reached home, I spread out the quilt to let off the heat.
回到家，将丝棉被摊开，让它抖去热气。
We have been let off our homework because of the concert.
因为有音乐会所以免了我们的家庭作业。
The theatre management kindly let me off a couple of performances to go to Yorkshire
剧院领导很体谅地同意我休演几场抽身到约克郡去。
They can let off steam in pubs where nobody knows them.
他们可以在酒店里纵情宣泄，那里没有人认识他们。
A resident of his neighbourhood had let off fireworks to celebrate the Revolution.
他家附近的一个居民燃放了烟花庆祝革命胜利。