—— 请按键盘 空白键 开始游戏 ——

The function of entrepreneurs is to reform or revolutionize the pattern of production by exploiting an invention or, more generally, an untried technological possibility for producing a new commodity or producing an old one in a new way.
如果学习,不能够做到专心,这样就会变得杂乱无章。
There is something profoundly mysterious about quantum mechanics that we still don't understand.
为别人浪费的一天并不是为自己浪费的一天。