cut someone some slack
US /kʌt ˈsʌm.wʌn sʌm slæk/
UK /kʌt ˈsʌm.wʌn sʌm slæk/

1.
對某人寬容點, 放某人一馬
to be less critical of someone or to allow them more freedom to do something
:
•
He's new to the job, so cut him some slack.
他是新來的,所以對他寬容點。
•
I know she made a mistake, but cut her some slack; she's been under a lot of pressure.
我知道她犯了個錯誤,但對她寬容點;她承受了很大的壓力。