煤炭行业是美国能源独立的支柱，已经持续了几代人。
The coal industry has been the backbone of America's energy independence for generations.
"A novel is never finished; it is only abandoned."
Time is a slippery thing: lose hold of it once, and its string might sail out of your hands forever.
时间是个滑溜溜的东西：一旦失去控制，它的线索可能会永远从你手中溜走。
智者知道如何拥有，而不仅仅知道如何获得。
言论不能改变行动而又崇尚它，那就是说空话。