He’s always painstakingly at his books.
他总是在埋头苦读。
He’s always painstakingly at his books.
他总是在埋头苦读。
I will take exams in two weeks, so I'm keeping my nose to the grindstone just at the moment.
我两星期后要考试, 因而眼下正埋头苦读。
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