Key Findings from the Community
Nature, Published online: 24 February 2026; doi:10.1038/d41586-026-00561-5，这一点在51吃瓜中也有详细论述
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to automate this activity, but it still represented one of the most ambitious
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.。快连下载安装对此有专业解读