—— 请按键盘 空白键 开始游戏 ——

I believe in living in the moment and making the most of every day.
Memory is not fixed; it’s a skill you can train.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
Who can afford to do professional work for nothing?
激光对于阿秒物理学的意义,就像望远镜对于天文学的意义一样。