birthrate
英
['bɜːθˌreɪt]
美
['bɜːθˌreɪt]
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Noun:
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the ratio of live births in an area to the population of that area; expressed per 1000 population per year
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用作名词 (n.)
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The birthrate is on the decrease.
人口出生率正在下降。
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The birthrate in this city is increasing at a ratio of 0.6 to a thousand every year.
这个城市的出生率以每年千分之0.
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