birth-rates

birth-rates 基本解释

(birth-rate 的复数) [医] 出生率

birth-rates 词性变化

原型:birth-rate

词组短语

1、birth rates 人口出生率( birth rate的名词复数 )

2、declining birth rates 出生率下降

birth-rates 用法和例句

1、Russia also has low birth rates.

俄罗斯的出生率也很低。

2、Birth rates are notoriously difficult to predict.

众所周知，出生率是很难预测的。

3、High birth rates were often balanced out by high death rates.

高生育率常被高死亡率抵消。

4、Poverty and illiteracy go together with high birth rates.

贫困, 文盲与高出生率密切相关。

5、Older programs have established live birth rates based on years of experience.

更老方案多年得活胎出生率。

6、Maternity services were to be reduced in consequence of falling birth rates.

由于出生率下降，产科服务会随之削减。

7、This is not only due to high birth rates, but to lower death rates as well.

这不仅仅是由于出生率高, 而且还由于死亡率低得缘故。

8、It is also important to understand the definitions of pregnancy rates and live birth rates.

解读妊娠率和活胎出生率得定义也是重要得。

9、A number of releant outcomes including pregnancy and lie birth rates were inestigated.

包括怀孕率和婴儿安全出生率在内的多项相关结果被研究。

10、Germany is facing a crisis as low birth rates combine with a growing population of citizens who are living longer.

德国目前正面临着低人口出生率和人口老龄化的危机。

重点词汇

birth n. 出生；分娩；起源；出身

rates n. 比率；价格；等级（rate的复数形式）