The census bureau says birthrates have dropped in every area of the world except africa .

人口普查局说，除了非洲之外，世界各地的出生率近来已有所下降。

Judaism , the first faith to crack christian hegemony is today deeply rooted in the u.s. , although it is being eroded by secularization , low birthrates and high levels of inter-marriage .

犹太教是历史上第一个欲打破基督教独尊地位的宗教，如今虽然受到世俗化、低生育率、高通婚率的冲击而日渐式微，但在美国依旧根深蒂固。

But the rapid growth of the hispanic population isn 't just due to higher birthrates : minority women also are younger on average , so more of them are in childbearing years .

但拉美裔人口的快速增长并不仅仅是因为高出生率，还因为少数族裔妇女的平均年龄更加年轻，因此处于生育年龄段的妇女人数更多。

Birthrates have been plummeting - faster in fact than in other developed country - even as the number of older citizens is soaring .

出生率持续下跌，事实上，比其他发达国家下跌得更快另一方面，老年人的数量却猛增。

In europe , declining birthrates and rising sentiment against immigration point toward a population that will shrink by as much as 100 million people by 2050 .

在欧洲，持续下降的出生率以及反对移民的情绪日益上升意味着欧洲的人口数量到2050年前最多将减少1亿。