crack of dawn
拂曉時(shí)刻
口語(yǔ)·表示清晨時(shí)刻
英文釋義
very early in the morning
例句
We have to leave at the crack of dawn to catch the early flight.
典故來(lái)源
源自18世紀(jì),crack指黎明時(shí)天空裂開的第一道光線。