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

• 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。
• The spatial niche of dominate forest populations in Baihuwan forest regions were discussed in this paper.
  对百户湾森林群落优势种群空间生态位进行了研究。
• This policy has led to a dramatic increase in our prison populations.
  这项政策已经让我们监狱的囚犯人数激增。
• Create more healthy environments, especially for poor and disadvantaged populations;
  创造更多的健康环境，特别是在贫困和弱势群体中；
• 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。
• More recently, lower thresholds for waist circumference have been recommended for Asian populations.
  最近，对亚洲人群推荐了一个更低的腰围阈值。
• Two World Bank reports address the economic impact of aging populations worldwide and offer direction on policy reforms.
  世界银行的两个报告探讨了全世界范围内人口老龄化对经济的影响，并提出了政策改革的方向。
• Nonexposure of susceptible plant populations to their pathogens is fairly common.
  感病的植物群体不暴露在它们的病原之下，这是相当普遍的。
• This, in fact, describes the undercurrents of populations not just in faraway countries;
  这其实，描述了人口的暗流不仅在遥远的国家；
• 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。