burn the midnight oil
熬夜工作或学习；熬夜加班
口语·形容熬夜工作或学习
英文释义
to stay up late working or studying
例句
He burned the midnight oil to finish his term paper before the deadline.
典故来源
源自油灯时代，熬夜工作需点燃灯油，比喻深夜工作或学习。