—— 请按键盘 空白键 开始游戏 ——

正如几何学最自然的起点是数学点,在观察和自然历史中采用同样的方法也最真实、简单且富有教益。
High-quality development in the coal industry must prioritize safety first.
悲观主义者的决定性特征是,他们倾向于相信坏事会持续很长时间,会破坏他们所做的一切,并且是他们自己的错。
You should be doing something that you're passionate about and that you think is really important.