2--Would you like to buy the warranty?

1--What is a warranty?

2--It's something that fixes your machine should it break.

1--How does it work?

2--If your laptop breaks, just bring it in and we'll fix it.

1--How much is the laptop?

2--It costs $550 without tax.

1--How much is the warranty?

2--The warranty is $40 for two years.

1--I think I'll be fine with just the laptop.

2--Alright, but you can always change your mind.

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注解：

1.laptop笔记本电脑
2.warranty保修   
3.tax税

===================================
译文：

1--您好，我想买这台新的笔记本电脑。

2--你想买保修吗?

1--保修是什么?

2--它在你的机器坏了的时候提供修理服务。

1--它怎么用？

2--如果你的笔记本电脑坏了,就把它带过来,我们会修好它。

1--笔记本电脑多少钱?

2--税前550美元。

1--保修是多少?

2--两年保修是40美元。

1--我想我只要电脑就很好了。

2--好吧,但你可以随时改变你的想法。