In Japan, for instance, birth rates fell below the replacement rate of 2.1 children per woman in the mid-1970s and have been particularly low in the past 15 years.

比如在日本七十年代中期，出生率降至相当于平均每个妇女生2.1个孩子以下，而且在过去的15年里一直明显的偏低。

youdao

That means the U.S. hovers just above the replacement birth rate of an average two children per women, while the U.S. abortion policy (one of many factors influencing the Numbers) is purely voluntary.

这表示美国的人口出生率徘徊在每个妇女2个孩子以上，而美国堕胎政策是完全自愿选择的，这是诸多影响出生率的一个因素。

youdao

In Japan, for instance, birth rates fell below the replacement rate of 2.1 children per woman in the mid1970s and have been particularly low in the past 15 years.

比如在日本七十年代中期，出生率降至相当于平均每个妇女生2.1个孩子以下，而且在过去的15年里一直明显的偏低。

youdao

Italians and Irish have been emigrating for centuries which is part of the reason why the birth rate in Italy is less than the replacement rate because who wants to stay in a place where there is little opportunity and there are no jobs?

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The natural birth rate in the USA has been below natural replacement rate for nearly a generation, and the USA has relied on massive immigration to continue population growth.

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The U.S. has a total fertility rate (TFR) of 2.0 nearly the replacement rate with Hispanic immigrants leading in birth rates.

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