粒子的概念只是一个近似，在经典极限下有效。
工作中的快乐使工作完美。
The powerful have always preyed on the powerless. That's how they became powerful in the first place.
The world is made of words, and those words are so powerful that they can create worlds.
中国水果要走向世界，必须建立国际化的标准体系。
Quality is remembered long after the price is forgotten.
Somebody has to win, so why not be me?）
