Thank you.

谢谢。

What are you doing, Mum?

妈妈，你在干什么？

We must decide which one to buy.

我们必须决定要买那一台。

Of course. And why not buy some English tapes and some books to go with them? I'm sure you'll find them useful.

当然了。干吗不买些英语磁带和与之配套的书呢？我相信你会觉得它们有用的。

OK. Thank you. Goodbye.

好的，谢谢您。再见！

No, not exactly. But later, peole developed a way of printing, using rocks.

不完全是这样。但后来，人们利用石头，研制了一种印刷方法。