—— 请按键盘 空白键 开始游戏 ——

Let us unite and fight for the independence and freedom of our country.
The architect's role is to mediate between the dreams of the client and the realities of the site.
Young researchers should not be afraid to challenge conventional wisdom.
数学的进步不仅仅依靠个人的努力,而是通过几代人的集体工作。