规范是命令、允许或授权某种行为的行动的意义。

The transformation of the coal industry requires both determination and patience.

Every barrel of oil we produce comes with a commitment to do it better than before.

迷惑的时候是人追逐佛法，开悟的时候是佛法追逐人。

I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones。