死亡率的英文：
mortality rate

参考例句：

Associated anomalies and prematurity significantly influence the mortality rate.
并发畸形与早产儿显著地影响死亡率。

A statistically significant excess in lung cancer mortality occurred in immigrants age 45 to 64
一个有统计意义的肺癌死亡率高峰出现在年龄为45到64岁的移民中。

In the case of Malaria,the use of mosquito nets treated with insecticide can reduce the childhood death rate by a fifth．
疟疾方面，使用蚊帐和杀虫剂可以降低1;5的儿童死亡率。

Great reduce the mortality from tuberculosis
使结核病的死亡率大大降低

High birth rates were often balanced out by high death rates.
高生育率常被高死亡率抵消。

Infant death rate,Death of infants under 1 year, excluding fetal deaths; rates per 1,000 registered live births
婴儿死亡率,是指1岁以下婴儿的死亡率,不包括胎儿死亡,每一千个已登记的新生儿的死亡率

Boys are slightly more likely to die in infancy than girls.
在婴儿期，男孩比女孩的自然死亡率要略高一点。

"When the birth-rate increases and the death rate drops, the population increases."
当出生率上升,死亡率下降时,人口就会增加。

greater availability of health care in cities than in rural areas has led to lower death rates in cities
在城市比起在农村能够获得更多的医疗保健，这就使得城市的死亡率较低。

Each curve in the figure reveals high lung cancer death rates in successive birth cohorts at the same age
在图中，每条曲线都表明，在延续血统组中年龄相同时，肺癌死亡率较高。

mortality是什么意思：
n. 必死的命运；死亡率

All things that live are mortal.
所有生物都会死的。

He is my mortal enemy.
他是我不共戴天的敌人。

No mortal could vie with Zeus.
任何凡人都没法与宙斯匹敌。

A demigod is the offspring of a god and a mortal.
半神半人是神只与凡人所生的后代。

They have no sense of mortality and they live for the moment.
它们过着过一天算一天般的生活，没有死亡的意识。

rate是什么意思：
n. 比率，速率；费用
v. 评估；认为；划分等级；值得

cumulative rating
累积收听率

These bonds have an AAA rating.
这些债券的信用度是3A级的。

To rate too low;underestimate.
低估对…估价太低；低估

A Lump Sum Rate of ...
费用合计…

To reduce in rank or rating;demote.
使降级降低级别或降级；使人降级