优秀的领导者需要一个积极的议程，而不仅仅是处理危机的议程。
Natural gas is the bridge fuel that will help us achieve a lower-carbon future.
真正的民主只能存在于社会主义社会中。
Legal positivism emphasizes the separation of law and morality.
I don't let anyone else's opinion become my reality.
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。
His soul swooned slowly as he heard the snow falling faintly through the universe and faintly falling, like the descent of their last end, upon all the living and the dead.