As China's farming population declines, agricultural modernization is needed to enhance productivity.

随着中农业人口少, 农业代化就需要提高生产力。

One reason for the population loss is Japan's high cost of living.

日本人口少的原因之一高昂的生活成本。

And in the very long term it means a smaller country.

从长远来讲，这会导致家人口少。

It found that immigration reversed what would have been major population decreases in 18 cities.

调查，民扭转了18个城市的主要人口少的趋势。

In St. Louis and other places, immigrants are helping halt population decreases in urban areas.

在圣路易斯和其他地方，民正有助于阻止城市地区的人口少。

A declining population can put a country under immense strain.

人口少会让一个家承受重压。

Tijani said the region “reduced the ranks of the hungry by almost 11 million.”

蒂贾尼说该地区“将饥饿人口少了近1100万”。

Immigration is the reason why the U.S. will not suffer a population loss in 2024.

民在2024年不会遭受人口少的原因。

Shrinking populations will suppress economic growth and foster unrest.

人口少将抑制经济增长并造成动荡。

A shrinking world is in our future, but obviously some places are much closer than others.

人口少的世界我们都要面对的未来，但显然有些家要更紧迫。

Europe will be the only region to shrink, with the biggest falls in former Soviet countries.

欧洲唯一人口缩的地区，其中前苏联家人口少最多。

The disease reduced Europe's population by around a third and caused major changes in the medieval social structure.

这种疾病使欧洲人口少了约三分之一，并导致中世纪社会结构生重大变化。

Other exacerbating factors included the introduction of alcohol which the natives of course had no prior experience with.

其他加剧人口少的因素还包括酒精的引入，当然，夏威夷原住民以前从未接触过酒精。

Shrinking populations could be even worse for growth, which economists believe requires the constant generation of new ideas.

人口少可能对经济增长更不利，经济学家认为，经济增长需要不断产生新的创意。

By the end of the 16th century, the once great city of Tenochtitlan's population had declined by over 90%.

到 16 世纪末，曾经伟大的城市特诺奇蒂特兰的人口少了 90% 以上。

Its working-age population is rising by about 12m people a year, even as China's shrank last year by 3m.

去年中的适龄工作人口少了300万，而印度却每年稳增1200万。

But economists say the drop is also due to a decline in its population and slowing productivity and competitiveness.

但经济学家表示，日本排名下降也由于人口少、生产率和竞争力放缓所致。

Since climate change is caused by human activities, it seems common sense that fewer people would mean lower carbon emissions.

由于气候变化由人类活动引起的，似乎人口少意味着碳排放少。

Computer simulations suggested that the likelihood of such a rapid change happening by chance, even in a diminished population, was tiny.

计算机模拟表明，即使在人口少的情况下，如此迅速的变化偶然生的可能性很小。

That reduced population means reduced demand for electricity, food, travel, buildings and all other resources.

人口少意味着对电力、食品、旅行、建筑和所有其他资源的需求少。