—— 请按键盘 空白键 开始游戏 ——

The pursuit of mathematical truth requires both intuition and rigor.
The strength of a state is in the well-being of its people.
Collaboration across industries is key to solving the plastic waste crisis.
快乐的情感是来源于与不好的事的对比,而快乐本身并没有任何意义。