give somebody a free pass
US /ɡɪv ˈsʌmˌbɑːdi ə fri pæs/
UK /ɡɪv ˈsʌmˌbɑːdi ə fri pæs/
1.
放一马, 网开一面
to allow someone to do something wrong or undesirable without being criticized or punished
:
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The teacher decided to give him a free pass on the late assignment because he had been sick.
老师决定放他一马，因为他生病了，所以迟交作业。
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We shouldn't give politicians a free pass when they make mistakes.
当政客犯错时，我们不应该放他们一马。