After 1815 improved transportation enabled more and more western farmers to escape a self-sufficient way of life and enter a nationalmarket economy.
1815年以后,交通的改善使越来越多的西方农民摆脱了自给自足的生活方式,进入了国家市场经济。
2
Two other developments presaged the end of the era of turnpikes and started a transportation revolution that resulted in increased regional specialization and the growth of a nationalmarket economy.