nonsmoker

1.Nonsmokers should avoid being in smoke-filled rooms.

不应该避免呆在雾弥漫里。

2.Imagine that you are a nonsmoker sharing a room with a smoker.According to the Coase theorem, what determines whether your roommate smokes in the room?

假设不你和一个民同住一室，根据科斯定理，什么决定了你室友是否在室内？