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

He believes that if he works all day he should be let off domestic chores.
他认为如果他整天工作，就应免掉他的家务劳动。
US businesses have been let off lightly.
美国企业暂且逃过了一劫。
Therefore, I believe, just give me a chance, I definitely let off; give me a platform, I will do better than others.
所以我相信，只要给我机会，我绝对不放过；给我一个平台，我会比别人做的更出色。
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。
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。
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。
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。
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。
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。
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。