—— 请按键盘 空白键 开始游戏 ——

只为自己活着的人,不值得活在世上。
I am tomorrow, or some future day, what I establish today. I am today what I established yesterday or some previous day.
Every problem in mathematics has a solution; you just have to find the right path.
政事分散在地方,但大权集中在中央