—— 请按键盘 空白键 开始游戏 ——

追求知识是一场没有终点的旅程,但每一步都带来自己的回报。
我不相信运气。我相信努力工作。
The task of the teacher is to lead the student from the known to the unknown.
Sustainability is not an option; it's a necessity for the survival of our oceans and our planet.