Birthrate
['bɝθ,ret]
解释:
(noun.) the ratio of live births in an area to the population of that area; expressed per 1000 population per year.
布赖恩特编辑--From WordNet
['bɝθ,ret]
(noun.) the ratio of live births in an area to the population of that area; expressed per 1000 population per year.
布赖恩特编辑--From WordNet