populations

英 [ˌpɒpjʊˈleɪʃənz]

美 [ˌpɑpjəˈleɪʃənz]

n.  (地区、国家等的)人口，人口数量; (统称)某领域的生物; 族群; 人口
population的复数

柯林斯词典

• N-COUNT （某一国家或地区的）全体人民，人口
  Thepopulationof a country or area is all the people who live in it.
  1. Bangladesh now has a population of about 110 million.
     孟加拉国现有大约1.1亿人口。
  2. ...the annual rate of population growth.
     人口年增长率
  3. ...the local population.
     当地人口
• N-COUNT （某一国家或地区某类人或动物的）总数
  If you refer to a particular type ofpopulationin a country or area, you are referring to all the people or animals of that type there.
  1. ...75.6 per cent of the male population over sixteen.
     16岁以上男性中的75.6%
  2. ...areas with a large black population.
     黑人人口众多的地区
  3. ...the elephant populations of Tanzania and Kenya.
     坦桑尼亚和肯尼亚的大象种群

双语例句

• Earthworm populations in arable soils in the United States may be destroyed by frost.
  在美国可耕地中蚯蚓的种群会被冰冻所毁坏。
• Larval and adult vector populations were surveyed weekly in six separate valley communities.
  每周对6个独立山谷内的幼虫和成虫媒介数量进行了监测。
• That virus will probably emerge in one of the countries that have avian flu infection in their bird populations.
  这一关键性和致命的事态发展很可能将发生在鸟群感染禽流感的一个国家。
• The variations of cork characters from 10 populations of? Quercus variabilis? in Shaanxi province are analyzed.
  对陕西境内10个栓皮栎群体栓皮性状变异情况进行了试验分析。
• Ethiopia and Kenya host the camps even while their domestic populations also suffer from hunger and malnutrition.
  埃塞俄比亚和肯尼亚是难民营的东道国，但这两个国家国内的人口也处于挨饿和营养不良的境地。
• The results of this vaccine trial hold great promise for improving health and saving lives in resource-poor populations.
  本次疫苗试验的结果为资源贫乏的人群提供了改善健康和拯救生命的巨大希望。
• Influenza is a serious public health problem that causes severe illnesses and deaths for higher risk populations.
  流感是一个严重的公共卫生问题，可在高危人群中造成严重疾病和死亡。
• This study aimed to analyze the morphological and cytological characteristics of Ranunculus cantoniensis within and among populations.
  运用居群学的方法，对居群内、居群间的禺毛茛进行了形态及细胞学两方面的性状分析。
• China and India have larger populations than any other countries in the world.
  中国和印度的人口比世界上其他国家的人口多。
• They investigated whether it is associated with TB symptoms in populations from West Africa.
  他们调查了这个叫做SP110的基因是否与西非人群的结核病症状有关联。