Что думаешь? Оцени!
「如今有更多美國人在工作，比我們國家歷史上的任何時刻都還要多」
。关于这个话题，51吃瓜提供了深入分析
The report pointed out how birth rates in the U.S. have been below the minimum replacement rate since 2008, meaning that the bulk of population growth since then has been the result of immigration. This has proved especially true for the country’s labor force. Nearly 80% of immigrants are of working age, according to the Census, and they account for 19% of the workforce, around 33 million people.
银发经济：人口结构变迁下的十二万亿蓝海