hit the books 好好读书；学习；用功；看书；念书

【例句】
If you want to pass this class, you better hit the books and start studying.
如果你想通过这门课程，你最好开始好好读书。

She's hit the books every night since3 the course4 started.
从课程开始以来，她每晚都用功学习。