bone up on 复习，补充
study hard 努力学习
review material 复习材料
prepare for exam 准备考试
1. I need to bone up on my Spanish before the trip to Mexico.
1. 在去墨西哥旅行之前，我需要温习一下我的西班牙语。
2. The new employee had to bone up on the company's safety protocols during the first week.
2. 新员工在第一周必须补充学习公司的安全规程。
3. Let's bone up on the latest marketing trends before the client meeting.
3. 在客户会议之前，让我们复习一下最新的营销趋势。
A: Do you feel ready for the history test tomorrow?
A：你觉得自己明天准备好历史考试了吗？
B: Not really. I'm going to stay up late to bone up on the French Revolution.
B：不太确定。我要熬夜恶补一下法国大革命的内容。
1) 为了考试或面试而临时突击复习
2) 补充某领域的专业知识
3) 重温旧知识以加深理解
1. 补充知识；温习；恶补（通常接 on）
e.g.
She spent the weekend boning up on her statistics.
她花了整个周末来温习统计学。
verb phrase
1. To learn a lot of information about a subject, usually in preparation for an exam or test.
Synonym: brush up, revise, review