In many low- and medium-income countries that are the traditional sources of international migrants, total fertility rates have dropped to levels at or near replacement. In this context of low fert...

中文翻译：

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美洲的移民、家庭组建和生育率

在作为国际移民传统来源的许多中低收入国家，总生育率已降至或接近更替水平。在这种低肥...