—— 请按键盘 空白键 开始游戏 ——

学习数学的最好方法就是做数学。
生活中你必须无所畏惧。
Every barrel we produce must be done responsibly, with full consideration of environmental and social impacts.
我不能教会别人任何事。我只能让他们思考。
The computer is a medium of expression, like a violin or a paintbrush.
成功是从一个失败跌到另一个失败而不失去热情。
I've learned that pressure is a privilege.