the smoking gun (di smóking gān)

Idiom Law

含义

a piece of evidence that clearly proves guilt

一项清晰证明有罪的证据 (yī xiàng qīngxī zhèngmíng yǒuzuì de zhèngjù)

例句

"The email was the smoking gun in the corruption case."

"电子邮件是腐败案件中的关键证据。" (Diànzǐ yóujiàn shì fǔbài ànjiàn zhōng de **guānjiàn zhèngjù**.)