dark horse
隱藏的才能或優點的人
口語·形容出人意料的競爭者或人才
英文釋義
An unknown or unexpected winner or competitor
例句
No one expected her to win the election; she was a real dark horse.
典故來源
源自賽馬術語,指賽前不為人知卻意外獲勝的馬匹,后泛指隱藏實力者。