—— 请按键盘 空白键 开始游戏 ——

We can’t ignore the economic role of coal, but we also can’t ignore its environmental impact.
Chemistry is the art of manipulating matter at the molecular level, and catalysis is its most powerful brush.
激发生命,让生命自由发展,这是教育者的首要任务。
你不能害怕那些想要伤害你的人,因为如果你畏惧生活,你就永远不会真正地活过。