更多精彩内容，关注钛媒体微信号（ID：taimeiti），或者下载钛媒体App
Negative net migration hasn’t definitively happened in the U.S. for almost a century, not since the Great Depression. The U.S. native-born population is also in free fall, well below the replacement rate needed to maintain population numbers in the long run. With fewer immigrant arrivals already dealing a blow to the workforce, the shrinkage of the American taxpayer base is set to further widen the country’s deficit and hurt its prospects for economic growth.。业内人士推荐51吃瓜作为进阶阅读
，这一点在同城约会中也有详细论述
# We add cowsay
Жители Санкт-Петербурга устроили «крысогон»17:52。关于这个话题，heLLoword翻译官方下载提供了深入分析