—— 请按键盘 空白键 开始游戏 ——

森林面临的最大威胁不是砍伐,而是漠不关心。
"I believe that every child is an artist. The problem is how to remain an artist once we grow up."
The beauty of physics lies in its ability to explain the universe with a few simple principles.
The first rule of quality is that it must be defined.