We see a big gap in the demography.

“我们看到过人口统计学的巨大鸿沟。

We can move from questions about demography and ask questions about human health.

我们可以把问题从人口统计学开始转向人类健康问题。

Samuel Preston studies human population, or demographics, for the University of Pennsylvania.

塞缪尔·普雷斯顿在宾夕法尼亚大学研究人口统计学。

Demographers have their hair on fire. This this is a big deal.

人口统计学家们都非常着。件大事。

This relatively huge increase has caught many demographers by surprise.

种颇为可观的增加量使得许多人口统计学家感到很惊讶。

Why should you consider taking a course in demography in college?

为什么你应该考虑在大学的时候上一门人口统计学方面的课程？

And yet the four of us have very little in common and are completely different demographically.

而我们四个人却没有什么共同点，在人口统计学上也完全不同。

I see demography as a central subject related to economics.

我认为人口统计学一门跟经济学相关的中心学科。

Demography gives you the tools to understand and to address these problems.

人口统计学为你提供工具来理解并解决些问题。

Demographers expect Texas to continue to grow, though its rate of growth may slow down.

人口统计学家预计，尽管德克萨斯州人口增长率可能会放缓，但人口会不断增长。

It has made demographics an important issue during its six months heading the European Union presidency.

在担任欧盟轮值主席国的6个月里，该国将人口统计学作为一个重要问题。

He says the new software has the potential to serve people as individuals rather than “vague demographic blurs”.

他说款新软件有能将人群作为个体对待，而不“不明确的人口统计学模糊形象”。

A demographer from Fudan University said that " the speed of ageing in China is unique."

复旦大学的一位人口统计学家称“中国老龄化的速度独一无二的”。

There were two reasons, says Tomas Sobotka of the Vienna Institute of Demography.

维也纳人口统计学研究所的托马斯? 索博特卡表示，导致种现象的原因有两个。

Demographers do not think population growth will pick up soon, and some believe growth may slow down even more.

人口统计学家认为人口增长不会很快回升，一些人认为增长可能会进一步放缓。

Britain's population, it turned out, was around 500,000 bigger than statisticians had thought.

结果显示英国人口比统计学家预计的竟多了约500，000人。

" The demographic transition is upon us now and its progressing, by historical standards, quite rapidly, " Duggar said.

“人口统计学的转变正在发生，而且在不断进展，根据历史的标准来看，而且变化得非常快。”

The demography pointed out that since the denominator had become larger.

人口统计学指出由于分母变大。

Some demographers suggest that cuts to welfare might have made poor mothers warier of having children.

部分人口统计学家称，削减福利可能会使家境贫困的母亲在考虑否生育小孩个问题上更加谨慎。

Eventually demography—and the huge tribe of retiring baby-boomers who expect pensions and health care—will bankrupt the country.

最终人口统计学和出生于“婴儿潮时期”的人大规模退休---他们期待着养老金和医疗保险，将会最终让美国破产。