第一，迷你对话

A: Mary, will you go out with us tonight?

Mary，今天和我们一起出去玩吗？

B: Sorry, I can't. I have to bone up on my piano.

对不起，我不行，我必须苦练钢琴。

A: You have practiced the piano the whole afternoon. You'd better have a rest.

你练钢琴已经一个下午了，最好休息一会儿。

B: Let me ask my mother.

我问问我妈妈吧。

第二，地道表达

bone up on

1. 解词释义

To bone up on的意思是“专心致志于......专心研究......”。

2. 拓展范例

e.g. If you are going to get a job in Japan, you had better bone up on the language.

如果你打算在日本打工，你最好刻苦学习日语。

e.g. 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。

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

Jim从图书馆借了一些书，以便钻研物理学。

e.g. I must bone up on the Highway Code before I take my driving test.

我得下一番功夫把公路法则背一背，才能去参加驾驶考试。

第三，视野拓展

have a rest：休息

e.g. Have a rest. I'll take over.

你歇会儿, 我来替你。

e.g. We've been working two hours. Let's stop and have a rest, shall we?

咱们已经干了两个小时，停下来歇会儿，好吗？

e.g. You've been swimming a long time now. Come out and have a rest.

游了半天了, 快上来歇会儿吧。