单词	demographics
释义	demographics /dɛməˈɡrafɪks / plural noun Statistical data relating to the population and particular groups within it: the demographics of book buyers... We'd like information about the demographics of the average lawn-care customer. Let's turn now to the subject of demographics, with special emphasis on immigration. Do you have any information about the demographics of book buyers, by age and genre of book?
随便看	trophic level trophic pyramid -trophism tropho- trophobiont trophoblast trophoblastic trophochromatin trophocyte trophogenic trophology tropholytic trophonema trophoneurosis trophoneurotic Trophonian trophonucleus trophophoric trophoplasm trophosomal trophosome trophosperm trophosphere trophospongia trophospongial

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