The ranks of immigrants and their children will grow to hit a record share of the US population in the second half of this century, new projections show, with Asian immigration taking over as the major source of population growth.
皮尤研究中心(Pew Research Center)一项新的预测显示，本世纪下半叶，外来移民及其子女在美国人口中的占比将升至创纪录水平，亚裔移民将接棒成为美国人口增长的主要来源。
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