精选优质文档-倾情为你奉上Unit 11) Burn the midnight oil熬夜读书，开夜车 To study or work until late at night.2) Hit the books用功读书，与熬夜无关 To study, especially with particular intensity 3) Do back-breaking work 劳累至极腰酸背痛的工作 To do some physically difficult work and makes you very tired.4) Work like a dog 拼命工作 To work very hard.5) Fall down on the job 敷衍了事，没做好工作 Be
