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单词 birthrate
释义

WordReference Random House Learner's Dictionary of American English © 2024
birth•rate /ˈbɜrθˌreɪt/USA pronunciation   n. [countable]
  1. the number of births for every 1,000 people in a given place in a given time:Birthrates are rising in some poorer countries.

WordReference Random House Unabridged Dictionary of American English © 2024
birth•rate  (bûrthrāt′),USA pronunciation n. 
  1. the proportion of births to the total population in a place in a given time, usually expressed as a quantity per 1000 of population.
  • birth + rate1 1855–60

Collins Concise English Dictionary © HarperCollins Publishers::
birth rate n
  1. the ratio of live births in a specified area, group, etc, to the population of that area, etc, usually expressed per 1000 population per year
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