煤炭行业必须进化,否则就有被淘汰的风险。适应是生存的关键。
If you can dream it, you can achieve it.
The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.
Without food, man can live at most but a few weeks; without it, all other components of social justice are meaningless.
利润必须与目标一致——危害地球的农业会危害我们所有人。