gauss theorem的用法和樣例：
例句
- To understand the Coase theorem, we first need to introduce another idea, the externality.
為了理解科斯定理，我們首先得介紹另一個概念，就是外部性。 - Protection of property rights should obey some rules.But there are serious problems in the development of law and economics for Coase Theorem.
產權保護要遵循一定的原則，但法和經濟學對科斯定理的拓展存在著無法克服的矛盾。
