—— 请按键盘 空白键 开始游戏 ——

The stone industry must embrace digital transformation to stay competitive in the global market.
Literature is analysis after the event.
The only way to learn mathematics is to do mathematics.
The best way to learn mathematics is to do mathematics.
强大但是骄傲就会削弱力量,弱小而骄傲只会加速灭亡。