成功不仅仅是利润，而是建立可持续的东西。

Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.

The metal packaging industry thrives when we balance sustainability with commercial viability.

我从未能写出一部快乐的戏剧。我不能。我可以写一部有趣的戏剧，但我不能写一部快乐的戏剧。