—— 请按键盘 空白键 开始游戏 ——

预测未来的最好方法就是创造未来。
为了完整地展示这个图表,我确实需要一个四倍空间的屏幕。然而,由于政府支出的削减,我们只能带给一个两倍空间的屏幕。
Mathematics is not a spectator sport; you have to play to understand.
The most important aspect of a software system is its ability to meet the needs of its users.