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犯了个错误

made a mistake

→ 犯
phrase Rare #28,984
made a mistake Literally, “committed a mistake.” The 了 indicates that the mistake has been made, and 个 is a measure word used with 错误.
CH: 如果我犯了个错误，请告诉我。
EN: If I made a mistake, please tell me.

他们犯了个错误。

They made a mistake.

我也许犯了个错误

I may have made a mistake.

— 放牛班的春天 (2004)

我可能犯了个错误。

I may have made a mistake.

你犯了个错误。

You made a mistake.