费尽心机
fèi​jìn​xīn​jī

rack brains

  • created sense approved 费尽心机/費盡心機 · fèi​jìn​xīn​jī · rack brains

    费尽心机 / 費盡心機

    fèi​jìn​xīn​jī

    rack brains

    to exhaust one's mental faculties in plotting or trying to find a solution; to take great pains

    他费尽心机，终于想出了一个两全其美的办法。

    expression

    created sense