the conditions of society are such that skills have to be paid for in the same way that goods are pa

题目

the conditions of society are such that skills have to be paid for in the same way that goods are paid for at a shop.
这句话改怎么理解,skills have to be paid for in the same way,这里的for是什么作用,还有 goods are paid for at a shop这里的for又是起到什么作用呢,如果说改成主动语态,we paid for goods at a shop这样我还能理解

答案