I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.
高分子化学的引入开辟了一个新的材料世界,其重要性可与发现新大陆相媲美。
Vote for the man who promises least; he'll be the least disappointing.
Innovation in quarrying isn't just about new machinery; it's about reimagining our relationship with the earth we extract from.