burn the midnight oil

US /bɜːrn ðə ˈmɪd.naɪt ˌɔɪl/
UK /bɜːrn ðə ˈmɪd.naɪt ˌɔɪl/
"burn the midnight oil" picture
1.

熬夜工作, 開夜車

to work late into the night

:
I had to burn the midnight oil to finish the report on time.
我不得不熬夜工作以按時完成報告。
Students often burn the midnight oil before exams.
學生們在考試前經常熬夜學習