—— 请按键盘 空白键 开始游戏 ——

The P versus NP problem is one of the most important unsolved problems in computer science.
Behavior is governed by the same laws in humans and animals.
你知道的越多,就越意识到你什么都不知道。
The essence of e-commerce is retail, and the essence of retail is efficiency.
I'm not afraid to be vulnerable.