—— 请按键盘 空白键 开始游戏 ——

There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false. A thing is not necessarily either true or false; it can be both true and false.
数字技术的融合将彻底改变传统煤炭开采方式。
恭敬乃是处事圆满的根源,谨慎则是全身的关键。