These changes, while significant, were concentrated in the elite, and for the vast majority of the population life was little changed from the Middle Ages.

这一时期的变革固然意义重大，但主要集中在精英阶层，对于大多数平民来说，他们的生活和中世纪几乎无异。

youdao

Life on Earth will become unsustainable unless population growth is held in check.

地球上的生命将无法延续，除非人口增长得到控制。

《柯林斯英汉双解大词典》

No one disputes the costs in quality of life and depleted health budgets of an obese population, but the quest for solutions gets diverted by ideological arguments around responsibility and choice.

没有人会质疑肥胖人群在生活质量上付出的成本和医疗预算的损耗，但寻求解决方案的注意力被围绕责任和选择的意识形态争论所转移了。

youdao

"It so happens that in some parts of Bolivia, this over-population of yacares is detrimental to human life So,there is a real claim there to sustainably manage the yacare population, which means killing them.

VOA: standard.2010.01.31

So how do we go about providing life-long learning opportunities to the entire population?

那我们应如何,为所有人们制造更多,终身学习的机遇？

麻省理工公开课 - 媒体、教育、市场课程节选

If you offer life insurance, you have life tables which give you probabilities of dying at various ages, but that's for the general population.

如果你提供人寿险,你会找张寿命表,告诉你各个年龄段的死亡率,但那是针对普通人群的

耶鲁公开课 - 金融市场课程节选

Selection can shift a population from life in the trees to life on the ground by tiny steps but only if the right kind of variation is available.

ECONOMIST: A master of evolution takes a last long look at Darwin

That means that you secure an area.. and because you then demonstrate to the population how life is better... that attracts people into that area and the ink spot can spread.

BBC: Public 'must back Afghan cause'

Advocates of a repeal say Connecticut's current law keeps inmates on death row for extended periods of time, who are often engaged in multiple appeals, and presents taxpayers with far larger costs than if the convict were placed in the general prison population serving a life sentence.

CNN: Connecticut lawmakers vote to repeal death penalty