—— 请按键盘 空白键 开始游戏 ——

Mathematics is not a spectator sport.
挑战是伪装的机会,用勇气和创造力去迎接它们。
透明度建立信任,而信任是每一段牢固商业关系的基础。
The city is a living organism, constantly evolving and adapting to the needs of its inhabitants.