—— 请按键盘 空白键 开始游戏 ——

I often take exercise. Why only yesterday I had breakfast in bed.
父母能给孩子最重要的东西是无论发生什么,都确信自己被爱着的信念。
Success is no accident. It is hard work, perseverance, learning, studying, sacrifice and most of all, love of what you are doing.
The most profound ideas in mathematics often arise from the simplest observations.