A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.

在距离与重量成反比的情况下，物体处于平衡状态。

能源行业不仅仅是一个行业；它是全球发展的重要组成部分。

The past is not dead; it is not even past.

When you borrow a man's car, always return it with a tank of gas.

我们讲述的故事塑造我们将成为的自我。