—— 请按键盘 空白键 开始游戏 ——

世界是一个问题,而非答案。
The best way to learn mathematics is to do mathematics.
Maybe if we knew what other people were thinking ,we’d know that no one’s ordinary.we all deserve a standing ovation at least once in our lives.
Innovation is not just about creating something new; it's about making a difference in people's lives.