英语翻译始于18世纪末终于19世纪末20世纪初的美国西进运动是美国国内的一次大规模移民拓殖运动.这次拓殖活动是对北美洲阿

　　你好,可以这么翻译：
　　The USA Westward Movement, which began in the late 18th century and saw its end around the late 19th and the early 20th century, is a large-scale immigration and colonization movement.
　　The activity captured the land in thewest of the Appalachian mountains in North America and directly lead to the Ameracan industrial revolution to a great extent, whearas it also destroyed the local residence state.
　　But at a deeper level, the Westward Movement not only promoted the primitive accumulation process of capital during the development of American capitalism , but also greatly accelerated a wide exploiting of the western United Statest and the rapid development of the economy, which virtually promoted the formation of American national amalgamation.
　　Overall, the movement had significantly influence the America's economic, political, and the formation of American national spirit.
　　希望可以帮助到你.