—— 请按键盘 空白键 开始游戏 ——

In mathematics, the journey is as important as the destination.
Challenges are opportunities in disguise—embrace them.
说出口的,就是结束且完成的。
数学是一种思维方式,而不仅仅是一堆事实。
Certification standards are the compass for responsible forestry.
我不是和想法一起工作,我是和材料一起工作。