death rate是什么意思 death rate怎么读
death rate的英文翻译是什么意思，词典释义与在线翻译
Noun:- the ratio of deaths in an area to the population of that area; expressed per 1000 per year
death rate的用法和样例
用作名词 (n.)
- This county has a very high infant death rate.
这个县的婴儿死亡率很高。 - They have brought the death rate down to1 per cent.
他们使死亡率下降到了百分之一。
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