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birthrate的英文翻译是什么意思，词典释义与在线翻译：
英英释义
Noun:
-
the ratio of live births in an area to the population of that area; expressed per 1000 population per year
birthrate的用法和样例：
例句
用作名词 (n.)
- The birthrate is on the decrease.
人口出生率正在下降。 - 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.
