—— 请按键盘 空白键 开始游戏 ——

The P versus NP problem is one of the most important problems in computer science.
可持续发展不是一种选择,而是我们对后代的责任。
海洋渔业是蓝色经济的重要组成部分,我们要在保护中开发,在开发中保护。
The harder the battle, the sweeter the victory.
You can either be a victim of your past or a pioneer of your future.
There are two ways of getting home; and one of them is to stay there.