举个例子，如果你要表示自行车商店的复数形式，你是用“bicycles s shop”还是“bicycleshops”?在表示授权书的复数时，你是说“power ofattorneys”还是“powers of attorney”?。

For example, do you say bicycles shops or bicycle shops? Do you say power of attorneys or powers of attorney?

youdao

他们的书应该是复数吧！

These are their books.

youdao

他们的书应该是复数吧！

These are their books.

youdao