—— 请按键盘 空白键 开始游戏 ——

生存还是毁灭,这是个问题。
如果你想成为领导者,就必须愿意做出不受欢迎的决定。
The existence of a legal system is a matter of social fact.
"In mathematics, we often seek elegance and simplicity, but in computer science, we must also consider practicality and efficiency."