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.
交易成功的关键是有一个清晰的计划并坚持执行。
"There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false."
The task of the modern educator is not to cut down jungles, but to irrigate deserts.
写作就像在镜子前裸露灵魂，不惧怕它映照出的影像。
合作在推进癌症研究中至关重要。