How much does that book cost?

那本书花多少钱买的？

Each book cost more than $80!

每一本的价格都超过八十美元！

Though this book cost but a dollar, he could not buy it.

尽管这本书只要一美金，但他还是买不起。

Comic books cost 10 cents back then, so I usually spent my money on comic books and went home.

因为就算买一本连环画也得花上10美分呢。

If books cost money, you can have public libraries.

如果书要花钱， 你可以拥有公共图书馆。

He knew the book cost more than four lire.

他知道这本书的价格超过四里拉。

So, the books cost a lot of money, but I have to buy them for my classes.

所以， 这些书花了很多钱，但我必须为我的课买它们。

For example: " The books cost a lot of money, nevertheless, I must buy them for my college classes" .

例如：“这些书花了很多钱，但是我必须为我的大学课程买它们” 。

It connects " the books cost a lot of money" with the sentence " I must buy them for my college classes" .

它将“这些书花了很多钱”和“我必须为我的大学课程买它们”这句话联系起来。