出生率的英文：
birthrate

The census revealed a declining birth rate.
人口普查结果表明出生率在下降。

The war brought about a reduction in the birth-rate.
战争导致出生率下降.

After the war there was a bulge in the birth-rate.
战后出生率激增.

The graph shows a bulge in the birth rate.
图表显示出生率的暴增。

The birth rate in France has been declining for several years.
法国的出生率几年来一直在下降。

The birth rate in this city is almost constant.
这城市的出生率几乎是不变的。

The child birthrate in that area has doubled.
该地区的婴儿出生率已经增加了一倍。

The birth rate in our country has been declining for several years.
我国人口的出生率几年来一直在下降。

The birth rate has begun to de - escalate.
出生率已开始逐步降低了。

The birth rate in our country has been declining for several years
我国人口的出生率几年来一直在下降。

The child birthrate in that area has doubled.
该地区的婴儿出生率已经增加了一倍。

Population explosion( sudden increase in populationresulting from an increased birth-rate and/or a reduced death-rate)
人口爆炸(由于出生率上升和[或]死亡率下降而引起的人口急剧增加).