人口的增加主要是因为出生率的上涨和寿命的延长。

The rise has been caused by an increase in the birth rate and greater longevity.

youdao

随着某一地区人口的增加，人们对食物的竞争也日益激烈。

As the region's local population grew, competition increased for existing food sources.

youdao

随着石油收益的下降，人口的增加，个人平均所得开始下降。

With oil revenues falling and populations growing, per capita income began to decline.

youdao

So, I already said what the number of square miles that were increased, but it increases from six to sixteen million of the population.

我已经提过了领土扩大的面积有多少,而人口从六百万增加到一千六百万

耶鲁公开课 - 欧洲文明课程节选

I don't know if like the immigrant population is, in America is growing, but

我不知道美国的移民人口是不是在增加，但是

中国的影响力 - SpeakingMax英语口语达人