汉语翻译：
n. 出生率英语解释：
名词 birthrate:

the ratio of live births in an area to the population of that area; expressed per 1000 population per year同义词：birth rate, fertility, fertility rate, natality

例句：

The birthrate in this city is increasing at a ratio of0.6 to a thousand every year.这个城市的出生率以每年千分之0．6的比率上升。

The birthrate is on the decrease.人口出生率正在下降。

详细解释：
birthrate 也作 birth rate
n.（名词）
The ratio of total live births to total population in a specified community or area over a specified period of time. The birthrate is often expressed as the number of live births per ,000 of the population per year.Also called natality
出生率：某一特定集团或区域在指定时间段内总出生人口与总人口的比率。出生率常以每年每000人口中的出生人数来表示也作 natality