—— 请按键盘 空白键 开始游戏 ——

真相很少是纯粹的,也从不简单。
"The truth is rarely pure and never simple."
The interplay between analysis and algebra is the driving force behind many breakthroughs in number theory.
Believe in yourself, you can do it.
Everyone has the brainpower to follow the stock market. If you made it through fifth-grade math, you can do it.
Stray birds of summer come to my window to sing and fly away. And yellow leaves of autumn, which have no songs,flutter and fall there with a sigh.