美国20世纪70年代就成为世界上获得移民最多、移民增加最快的国家。对于移民，美国国内不同的观点针锋相对，争论不休。在关于移民的辩论中，反对者经常争论说美国的工作应当提供给美国人，外来移民是经济的负担。然而一些数字表明，近期移民实际上是目前这个国家经济繁荣的一 In the 1970s, the United States became the country that received the largest number of immigrants and the fastest increase in immigration in the world. For immigrants, different views in the United States are diametrically opposed and debated. In the debate on immigration, opponents often argue that the work of the United States should be made available to Americans, and immigration is a financial burden. However, some figures show that recent immigrants are in fact the current economic prosperity of this country