—— 请按键盘 空白键 开始游戏 ——

The world is a book, and those who do not travel read only one page.
Every challenge is an opportunity in disguise.
This is true: It’s hard to cheat an honest man.
The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.
在量子力学中,测量的行为可以改变被测量系统的状态。