The only time the human population declined was in the years following 1347, the start of the of the plague 'Black Death' in Europe.

人类人口减少的唯一时间段是1347年之后的数年，即黑死病在欧洲蔓延期间。

youdao

A much less virulent version of the Black Death plague that killed a third of Europe's population in the 14th century is still present today, according to a study published Tuesday.

根据星期二发布的一份研究称，在十四世纪杀死了三分之一欧洲人口的黑死病的一个没那么致命的变种今天依然存在。

youdao

A much less virulent version of the Black Death plague that killed a third of Europe's population in the 14th century is still present today, according to a study published Tuesday.

根据星期二发布的一份研究称，在十四世纪杀死了三分之一欧洲人口的黑死病的一个没那么致命的变种今天依然存在。

youdao