—— 请按键盘 空白键 开始游戏 ——

The essence of computational complexity is to understand the limits of what can be computed efficiently.
可持续性不仅仅是一个流行词;它是一个商业的必要条件。
在外交中,信任是一个更宝贵的货币,而不是金钱。
The secret of all effective advertising is not the creation of new and tricky words and pictures, but one of putting familiar words and pictures into new relationships.