birthrate

['bə:θ.reit]

n.出生率

例句与用法：

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。

详细释义：

n.

出生率[C]

The birthrate in the city has been decreasing.

该市的出生率一直持续下降。