—— 请按键盘 空白键 开始游戏 ——

有时,生活中最重要的东西是我们看不见或摸不着的,但我们可以在心中感受到它们。
"Sometimes the most important things in life are the ones we can't see or touch, but we can feel them in our hearts."
We must bridge the gap between academic research and industrial application.
The best way to learn econometrics is by doing—working with real data and real problems.
La mélancolie, c'est le bonheur d'être triste.