—— 请按键盘 空白键 开始游戏 ——

可持续性不仅仅是一个目标,更是一种责任。
Sustainability is not just a goal, it's a responsibility.
Don’t let your fears control you.
The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is a finite problem.
一种善行没有内心的支持就不会长久,一种行为如果得不到自身的了解就无法树立。