解释：第一次击鼓能振作士兵们的勇气，第二次击鼓可以使士兵们的勇气低落，第三次击鼓士兵们的勇气就消失了。
写作是一种不被中断的说话方式。
The coal industry is about people, not just profits.
儿童不会自己判断自己，他是以别人对他的态度来判断自己的。
The steel industry must embrace sustainability to survive in the 21st century.
Innovation is not just about technology; it's about changing the way we think and operate.