1、Travel and transportation were changed when the steamship was invented, and they were changed even more when the locomotive was invented bygeorge Stephenson in 1814.(发明蒸汽船之后，人们的旅行和交通运输都改变了。而在1814年，乔治·史蒂芬逊发明蒸汽机车后，变化更大了。。)
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