—— 请按键盘 空白键 开始游戏 ——

The key to credible causal inference is not just the method, but how well the method fits the question at hand.
The first of April is the day we remember what we are the other 364 days of the year.
The only thing I can control is my effort and my attitude.
每个家庭都有自己的秘密,但在某些国家,这些秘密更大、更危险。