Those are examples of population problems.

那些都是人口问题的例子。

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

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

你们将面临前所未有的人口老龄化问题。

youdao

Orange County used to be a metaphor for bland homogeneity, its politics solidly Republican, its population overwhelmingly white, its problems small-town.

ECONOMIST: Orange County

The report calls for more emphasis on engineering solutions to problems caused by rapid population growth, particularly in sub-Saharan Africa.

BBC: Harrabin's Notes: Population overload?

The building of more freeways in relatively low-population areas will not solve the congestion problems in the cities where the concentration of buyers is located.

FORBES: China's Auto Industry Shows Signs Of Impending Gridlock