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

This time, I feel slightly let off the hook.
而这一次我感到一丝解脱。
We've been let off school today because our teacher is ill.
今天学校放假，因为我们的老师病了。
A second rocket is then let off to make sure everyone knows the bulls are loose in the street.
第二个火箭随后放出，以确保每个人都知道公牛队已开始在街上奔跑了。
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。
I gave the rest of the squibs to the little Cummings'boy to let off.
我把其余的爆竹都给了卡明斯的小孩。
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。
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。
She was let off with a warning.
她没被处罚，只是受了个警告。
He was let off without punishment; we won't let him off so easily next time.
他没受处分就过去了，下次我们不能这样轻易放过他。
Don't let off fireworks near the house.
不要在靠近房屋的地方放焰火。