The coal industry has been the backbone of America's energy independence for generations.
煤炭行业是美国能源独立的支柱,已经持续了几代人。
The biggest risk is not taking any risk.
To live is the rarest thing in the world. Most people exist, that is all.
只要心中有远大的志向,没有不能达到的地方;而心中所追求的,则没有任何困难可以阻拦。
弦理论的景观是广阔而复杂的,可能有10^500个不同的可能宇宙。
抽象的目的不是模糊,而是创建一个新的语义层次,在这个层次上可以绝对精确。
"You can't go back and change the beginning, but you can start where you are and change the ending."