—— 请按键盘 空白键 开始游戏 ——

We are all haunted by the ghosts of our own pasts, and sometimes, by the ghosts of others.
激励措施的微小变化可以导致行为的巨大变化。
我不在乎名声。我在乎的是工作。
The rise of China represents the most significant challenge to the liberal international order since its inception.