—— 请按键盘 空白键 开始游戏 ——

不要害怕失败;害怕不去尝试。
如果你想走得快,就独自前行;如果你想走得远,就一起走。
The beauty of topological insulators lies in their robustness; their surface states are protected against disorder and imperfections.
The difference between ordinary and extraordinary is that little extra.