解释：既要追悔以往的过失，也要预防将来可能发生的错误。

电子不是一个物体，而是电磁场的一种表现。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

"The most powerful moments are those without words."

我不是女人，我是力量。

My success is because I have a good team.