give somebody a free pass
US /ɡɪv ˈsʌmˌbɑːdi ə fri pæs/
UK /ɡɪv ˈsʌmˌbɑːdi ə fri pæs/

1.
放一馬, 網開一面
to allow someone to do something wrong or undesirable without being criticized or punished
:
•
The teacher decided to give him a free pass on the late assignment because he had been sick.
老師決定放他一馬,因為他生病了,所以遲交作業。
•
We shouldn't give politicians a free pass when they make mistakes.
當政客犯錯時,我們不應該放他們一馬。