—— 请按键盘 空白键 开始游戏 ——

User needs are the starting point of our innovation.
To understand oneself is to understand the world.
Don't feel stupid if you don't like what everyone else pretends to love.
试图在不激发学生学习欲望的情况下进行教学的老师,就像在冷铁上敲打。