population
Definitions
All the people living in a particular area or country.
人口，（某地区或国家的）全部居民。
A particular group within a larger one (the elderly population, the prison population).
（某一特定的）群体（如老年人口、在押人员群体）。
(biology/statistics) The total set of organisms or items being studied.
（生物学/统计学）种群；总体（被研究的全部个体或对象）。
Root Breakdown
Root-derivedpopul (people) + -ate (verb: populate, 'to fill with people') + -ion (act/result) = 'the peopling' of a place. From the act of filling a place with people it became the count of people there, and then the group itself — which is why a biologist can call any studied group a 'population.'
Root popul still carries 6 more wordsCommon Collocations
- 1.population growth人口增长
- 2.world population世界人口
- 3.population density人口密度
- 4.aging population老龄化人口
Example Sentences
- 1.
China has the second largest population in the world.
- 2.
The town's population has doubled in twenty years.
- 3.
Vaccination protects the most vulnerable population.
- 4.
The researchers studied a sample drawn from the whole population.