—— 请按键盘 空白键 开始游戏 ——

疼痛不仅仅是一种感觉;它是一种复杂的生物反应,告诉我们某些地方出了问题。
Sustainable infrastructure should balance economic, social and environmental benefits.
We don't inherit the land from our ancestors; we borrow it from our children.
The Langlands program is a framework for understanding the fundamental nature of mathematical truth.