—— 请按键盘 空白键 开始游戏 ——

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
在中国要成功,你既需要快速又需要灵活。
If you want to fly, you have to give up what weighs you down.
作为一个有创造力的人,最危险的想法是认为你知道自己在做什么。
Sustainability is not an option; it's a necessity for the future of agriculture.