2--How much is your English textbook?

1--It's $198. I'm not kidding.

2--That's ridiculously expensive! What's the title of the textbook?

1--It's called How to Write Well.

2--Dude, someone is selling that book for $30.

1--No way. What edition is it?

2--I think it was the 10th edition.

1--Oh, no wonder he or she is selling it for only $30.

2--What edition do you need?

1--I need the 21st edition.

2--The publisher seems to be really making money, considering the number of editions.

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注解：
1.spend花费 
2.textbook教科书 
3.considering考虑到

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译文：

1--在我买了英语课本后，我不能再花钱了。
2--你的英语书多少钱？
1--198美元。我没有开玩笑。
2--真是贵得离谱!教科书的标题是什么?
1--它叫“如何写好”。
2--老兄,有人卖那本书只要30美元。
1--不可能。它是什么版本的?
2--我认为那是第十版。
1--哦，难怪他（她）只卖30美元。
2--你需要的是哪个版本？
1--我需要第21版。
2--考虑到版本的数量，出版商似乎真的很赚钱。