和平不是免费的,需要不断努力维护。
释义:美丽的彩云容易消散,明亮的圆月难得圆满。
History is a nightmare from which I am trying to awake.
The future of coal enterprises lies in intelligent mining and clean utilization.
可持续性不是一种趋势,而是我们对后代的责任。
Innovation comes not from more resources, but from better use of resources.