—— 请按键盘 空白键 开始游戏 ——

数学的力量在于它的抽象性,使我们能够看到不立即显现的模式和联系。
The power of mathematics is in its abstraction, allowing us to see patterns and connections that are not immediately obvious.
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
安全不仅仅是一项政策,它是必须融入我们每项操作的文化。
The heart is the household divinity which, discharging its function, nourishes, cherishes, and quickens the whole body.