成功的收获始于倾听——倾听土地、植物和照料它们的人。

The Soviet Union was a civilization of fear, where people lived in constant dread of the knock on the door at night.

Diplomats should have the ability to respect and understand other countries and cultures, as well as the ability to communicate across language and cultural barriers.

一个问题如果在计算机上可以快速解决，那么它属于P类问题；如果一个解可以快速验证，那么它属于NP类问题。

编辑是一项改写活动。