每日商务英语 第417期:机灵的 本文已影响 1.62W人 sharp as a tack 机灵的(成语)ing-bottom: 177.78%;">英文释义 (IDIOM) Very intelligent.例句 Our accounting consultant may be old but she's sharp as a tack, and in only a few minutes she found a number of errors in our accounts.我们的会计顾问虽然年老,但是非常机灵,她在几分钟内就发现了账目中的很多错误。