字典 波兰语 - 英语
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pracować po nocach 用英语:
1. 
burn the midnight oil
To become a doctor, you have to burn the midnight oil.
If you burn the midnight oil night after night, you'll probably become ill.
英语 单词“pracować po nocach“（burn the midnight oil）出现在集合中：
Most common English Idioms cz2 AndruszkiewiczDział 3 szkoła part 2
famous idioms meaning
Success Advance Unit 4
speakout adv. u7
