请帮助翻译成英语：如果这些书花费不贵,每本的价格低于5元,我就都买下来.

If these books the cost is not expensive, the price is less than 5 yuan per, I would buy it.
祝学习愉快

If these books are expensive, the price below $5, I bought the

0996的好，

I will buy these books as long as they are not expensive enough to 5 yuan a book

i would buy them all if the books cost not to much,let's say 5 yuan each or lower.
let's say 比如说（用作插入语）