It would be difficult for developed countries to maintain the size of population.

发达国家很难保持人口规模。

youdao

And I also visited a country with a very small size of population, called Cape Vede.

我也访问了一个人口很少的国家，叫佛得角。

youdao

Third, the size of population and development: the planning area, planned population size of 31.1 million people.

人口与建设规模：规划区内规划人口规模为31.1万人。

youdao

So in a town that's the size of new Haven with a population of let's say 100,000 people in just the immediate New Haven area, there might be 20 of these instances of very severe form of polio per year, 20 crippled children would result.

在一个像纽黑文这么大的城市里,大约有十万人口,生活在纽黑文地区的人当中,每年可能就会有二十人,感染到这种急性传染病,可能会导致二十个孩子残疾

耶鲁公开课 - 生物医学工程探索课程节选

"We are where India was in the early Nineties, we have the same size of population, " said Ethiopia's Mr Zenawi.

BBC: Davos 2012: Africa leaders urge co-operation

Once, the wealth of a nation was defined by the expanse of its land, the size of its population or the strength of its army, the abundance of its natural resources.

WHITEHOUSE: Vice President Biden Speaks in Kenya

The families differ by the size of the human population and the size of the global economy.

FORBES: So That's Climate Change Entirely Solved Then