—— 请按键盘 空白键 开始游戏 ——

Death in itself is nothing; but we fear to be we know not what, we know not where.
Battery swapping must make recharging more convenient than refueling.
The beauty of mathematics is that it allows us to abstract away from the physical world and focus on the underlying principles.
世界不会记住你说的话,但它永远不会忘记你做的事。