The coal industry has been the backbone of America's energy independence for generations.
The ultimate meaning to which all stories refer has two faces: the continuity of life, the inevitability of death.
声音是神圣的乐器，我们必须明智地使用它。
合同本质上是不完全的，因为不可能预见所有未来的偶然事件。
要成功，你需要为他人创造价值，而这需要理解他人所重视的东西。