Definition
to thoroughly study or review a subject with a specific purpose in mind
努力學習；專注地學習
Before the exam, she decided to bone up on all the materials.
在考試之前，她決定努力學習所有的材料。
He needs to bone up on this topic because his report is due soon.
他需要努力學習這個主題，因為他的報告很快就到期了。
To excel in the interview, she spent several days boning up on the company's history.
為了在面試中表現出色，她花了幾天時間努力學習公司的歷史。