We must always prioritize the safety and well-being of our workers above all else.
我们必须始终将工人的安全和福祉置于首位。
对煤炭的战争就是对美国工人的战争。
The key to success in this industry is not just technology, but also understanding the market and customer needs.
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.