我们今天种植的每一棵树都是为我们永远不会见到的后代留下的遗产。
"Language is not just a tool for communication; it is a bridge to the soul."
数学中最深刻的思想往往源于最简单的观察。
The creation of a modern state is a complex and difficult process that requires the development of strong institutions.
我们开采的每一桶石油都必须以最小的环境影响负责任地进行。