8. Travel and transportation were changed when the steamship was invented, and they were changed even more when the locomotive was invented by George 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。