—— 请按键盘 空白键 开始游戏 ——

无论你的背景如何或来自哪里,只要你有梦想和目标,这才是最重要的。
By plucking her petals you do not gather the beauty of the flower.
Invest in research today, or face scarcity tomorrow.
Pros are just amateurs who know how to gracefully recover from their mistakes.
数学的真正力量在于它简化复杂事物的能力,使不可理解的事物变得可理解。