The function of entrepreneurs is to reform or revolutionize the pattern of production by exploiting an invention or, more generally, an untried technological possibility for producing a new commodity or producing an old one in a new way.

跨价值链的合作是解决塑料废物挑战的关键。

文学是对生活的虚假再现，但它帮助我们更好地理解生活，指引我们在出生、经过和死亡的迷宫中找到方向。