你的空气无法流动是因为我。

The man in the planning room, whose specialty under scientific management is planning ahead, invariably finds that the work can be done better and more economically by a subdivision of the labor.

森林的真正价值不能仅用板英尺来衡量。

我是电影里的反派，一直喊着我不是坏人。

Sustainability is not just about the environment, it's about people.

友谊是时间投资的问题。