I mean, as the population grows and there are more vehicles on the roads and there's more machinery, surely they can't depend so much on sugar cane?

我是说，随着人口增长，路上车辆更多了，机械也更多了，他们肯定不能只依赖于甘蔗（作为生物燃料）吧？

youdao

So what do I mean by the population in this case?

所以我这里指的人群是？

youdao

The growing world population could soon mean that our farms cannot produce enough meat to feed everyone, creating a market for artificial beef, pork, lamb and chicken.

很快地，不断增长的世界人口可能意味着我们的农场不能生产足够的肉类来供给每一个人，要创造一个市场卖人造牛肉、人造猪肉、人造羊肉和人造鸡肉。

youdao

Yet treatments and population growth mean that more people than ever are living with H.I.V.

VOA: special.2009.12.08

We can define it in a couple of different ways depending on whether we're talking about sample mean or population mean.

我们有几种不同的方式去定义这个概念,取决于我们指的是,样本均值还是总体均值

耶鲁公开课 - 金融市场课程节选

Well, a cross-sectional study would mean that you'd get a random group of the population and measure them in 1970 and then take another random group five years later and measure them, but it wouldn't be the same people necessarily, it would be different groups of people.

那么,横断面研究就是,1970年你在人群中随意选择一组人,并记录下相关数据,然后,五年后再随意选择一组人记录数据,但这不需要是同一组人,通常是不同的人

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

National competitiveness is a slippery and sometimes incoherent idea, but a coherent version is to take it to mean a population with the human capital to adapt when old jobs go away, and shift quickly out of dying industries and into growing ones.

FORBES: Trade and China

But this is likely to mean a breeding population will become established.

BBC: Natural invasion causes health problems

The population does mean you get a more precise estimate of BMI simply by averaging over large numbers.

BBC: BMI: Does the Body Mass Index need fixing?