burn ·phrase (IDIOM)
Definition: to work late into the night Level: C2
他不得不熬夜工作以赶上截止日期。
He had to ___burn ___the ___midnight ___oil to meet the deadline.
她正在为准备考试而开夜车。
She's ___burning ___the ___midnight ___oil to prepare for her exams.
如果不是在这个项目上熬夜工作，我们不可能满足客户的期望。
Without ___burning ___the ___midnight ___oil on this project, we wouldn't have met the client's expectations.