I was burning the midnight oil to finish the project before the deadline.

我熬夜工作以在截止日期前完成项目。

She often burns the midnight oil when preparing for exams.

她经常熬夜为考试做准备。

After burning the midnight oil for weeks, he finally completed his thesis.

熬夜几周后，他终于完成了论文。

If you want to succeed, sometimes you have to burn the midnight oil.

如果你想成功，有时你必须熬夜工作。

They were burning the midnight oil to get their new product ready for launch.

他们熬夜以准备新产品的发布。