Those are examples of population problems.

那些都是人口问题的例子。

youdao

Perhaps the simplest summary of this analysis of man's population problems is this: the Commons, if justifiable at all, is justifiable only under conditions of low-population density.

或许对人们的人口问题最简单的摘要是这样：如果要说道理的话，公地只可以在低人口密度的条件下成立。

youdao

You will face problems in the aging of the population that have never been faced before.

你们将面临人口老龄化带来的前所未有的问题。

youdao

"It is crucial that national authorities do not rush to give information on source of infection which is not proven by bacteriological analysis, as this spreads unjustified fears in the population all over Europe, and creates problems for our food producers selling products in the EU and outside of the EU."

VOA: special.2011.06.10

Given that we have the largest Internet population, it's likely that we will be able to encounter new problems before American people encounter.

中国的互联网用户是最多的，中国很有可能,将在美国人之前遇到新的问题。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

Because nutrition is going to be one of the big problems of your generation; how to have enough nutritious food for the population as it grows.

因为营养,对你们这一代人是个大问题,怎样才能确保食物的质和量,能够满足日益增长人口的需求

耶鲁公开课 - 生物医学工程探索课程节选

Archival records show that the Hospital began to face population problems, as inpatients grew older but had no alternative place to go.

UNESCO: UK National Commission for UNESCO - A relic to a forgotten era: over a century of material documenting the medically incarcerated linked with Wellcome Trust in new project

Comptroller John Liu said the mayor gave a "selective retelling of history" that leaves out high unemployment, a record homeless population and other problems.

WSJ: Mayor Celebrates His Achievements

It points to the National Gambling Impact Study Commission, which in 1999 concluded that a mere 0.6% of America's adult population had serious problems with gambling.

ECONOMIST: America's booming casinos