每日商务英语 第575期:口误

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slip of the tongue ------- 口误（成语）

英文释义
(IDIOM) To say something by mistake; to make a mistake or reveal a secret without intending to do so.

例句
Yesterday my brother made a slip of the tongue and called his new girlfriend by the name of his former girlfriend.
昨天，我兄弟出现了口误，用前女友的名字称呼他的新女友。