英语词汇“population pyramid”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	population pyramid
释义	population pyramid Sociol. a graph showing the distribution of a population by sex, age, etc. [1945-50]
随便看	phloem necrosis phloem ray phlogistic phlogiston phlogopite phlorizin phloroglucinol phlox phlox family phlyctena Ph.M. Phnom Penh -phobe phobia -phobia phobic -phobic Phobos Phocaea phocine Phocion Phocis phocomelia phoebe Phoebe

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