—— 请按键盘 空白键 开始游戏 ——

The joy of mathematics lies in the journey of discovery, not just the destination.
如果你想成为最好的,努力就永远不会停止。
元素周期表不仅仅是一张图表,它是无限可能的地图。
The best science fiction is not about the future; it's about the present.