Sustainable practices are not just an option; they are a necessity for the survival of our industry.
可持续的做法不仅是一种选择，更是我们行业生存的必要条件。
The only way to find out what you really believe is to write a novel.
I'm a very emotional person. I cry at the drop of a hat.
煤炭的真正价值在于我们如何负责任地开采和使用它。