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参考翻译
Advances in motive power were for a long while the main way in which progress and national competition in technology were measured.First at sea,then on the railways,then on the roads,in the air and finally in space,more and more rapid movement was seen as an carefree good and also,in some vague way,as a key to a fuller understanding of the world.
n. 比赛，竞争，竞赛
