—— 请按键盘 空白键 开始游戏 ——

即使你拥有世界上所有的天赋,如果不努力,也无济于事。
What is learned is not movements but meanings.
The process of grouping, of organization, is not arbitrary but follows definite laws.
煤炭的真实成本必须既考虑其即时价值,也考虑其对社区和生态系统的长期影响。