头顶的星星数不胜数，每一颗都是广阔黑暗中的微小灯塔。
The stars above were countless, each one a tiny beacon of light in the vast darkness.
Green mining and low-carbon utilization are the only way for the sustainable development of the coal industry.
It is silly not to hope, he thought.
我们爱的书，它们也爱我们。正如我们在书页中标记位置，那些书页也在我们身上留下印记。