"The universe has moved for us."

The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.

The leather industry must evolve to meet both environmental standards and consumer expectations without compromising quality.

跨行业合作加速进步。

The only thing you sometimes have control over is perspective. You don't have control over your situation. But you have a choice about how you view it.

Happiness depends on the inner self, not the external world.

多项式时间归约的概念对于理解NP完全问题的结构至关重要。