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1·I need to bone up on history.

我需要对历史下苦功。

2·I need to bone up on my English.

我得好好学英语。

3·I cut off my bone up to escape them.

我切断了我的骨头才逃走。

4·Swimming is the best way to bone up your body.

游泳是最佳的强身健体的方式。

5·I must bone up on my French before we go to Paris.

在我们去巴黎之前，我必须刻苦学习法语。

6·Maybe you have to bone up on your test-taking skills.

你应该提升一下应试技巧。

7·I guess I have to bone up for my English test Friday.

我想我得准备星期五的英语考试了。

8·I had to bone up on my Latin verbs before the final exam.

期末考试前我得苦攻一下我的拉丁语动词。

9·She had to bone up on the property laws before her big day in court.

在上法庭这个重要日子之前，她必须苦读财产法。

10·Jim checked out some books from the library in order to bone up on physics.

吉姆从图书馆借了一些书，以便钻研物理学。