The opening up of new markets, foreign or domestic, and the organizational development from the craft shop and factory to such concerns as U.S. Steel illustrate the same process of industrial mutation—if I may use that biological term—that incessantly revolutionizes the economic structure from within, incessantly destroying the old one, incessantly creating a new one.
可持续发展不再是可选项，而是任何负责任的采矿业务的必要条件。
对物体基本粒子相对重量的研究是一个全新的课题，就我所知，此前无人涉足。
Every observation we make is a step closer to unraveling the mysteries of the universe.