Because don't forget: after WWII, there was a baby boom in many countries.

二战后，许多国家都出现了婴儿潮。

On the plus side, elephants have had a baby boom and no rhinos were illegally killed in 2020.

好的方面是，大象迎来了生育高峰，并且2020年没有犀牛被非法捕杀。

Previous astronomical observations have hypothesized that there was a " baby boom" of stars about seven billion years ago.

此前的天文学观测曾假定，约70亿年前存在过恒星的“婴儿潮”。

Luckily for the preservation of some of these critically endangered species, the zoo is in the midst of a baby boom.

幸运的是，对于这些极度濒危的物种来说，动物园正处于生育高峰。

The latest dating process confirms a scientific theory that predicted " a baby boom of stars" happened before the formation of our sun.

最新的日期测定过程证实了一个科学理论，即" 恒星的生育高峰" 发生在太阳形成之前。

Although birth rates were low in the former communist countries of eastern Europe, and in traditionalist places where it is hard to combine work with motherhood—think Japan, South Korea and southern Europe—many countries were having a baby boom.

尽管在东欧的前社会主义国家，以及难以将工作与母亲身份结合的传统之地中，如日本、韩国和欧洲南部地区，出生率低下—但许多国家都经历过婴儿潮时期。