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.(發(fā)明蒸汽船之后,人們的旅行和交通運(yùn)輸都改變了。而在1814年,喬治·史蒂芬遜發(fā)明蒸汽機(jī)車后,變化更大了。。) (好查hao86.com)