populations
The population of a country or area is all the people who live in it.
Bangladesh now has a population of about 110 million.
孟加拉国现有约一亿一千万人口。
the annual rate of population growth.
人口年增长率。
If you refer to a particular type of population in a country or area, you are referring to all the people or animals of that type there.
75.6 per cent of the male population over sixteen.
16岁以上男性人群的75.6%
areas with a large black population.
有大批黑人群体的地区。
the elephant populations of Tanzania and Kenya.
坦桑尼亚和肯尼亚的大象种群。