The best way to optimize a program is to optimize it.

说某事就是执行一项行动，而执行行动就是用言辞来实现某事。

Energy security is the cornerstone of national security. We must make every effort to ensure the security of national energy supply.

技术创新是解决能源安全、环境保护和经济发展三重困境的关键。

艺术是过去与现在之间的对话。