| 单词 | mortality |
| 释义 | mortality n. (pl. -ies) 1. the state of being subject to death. 2. loss of life on a large scale. 3. a the number of deaths in a given period etc. b (in full mortality rate) a death rate. Etymology: ME f. OF mortalit{eacute} f. L mortalitas -tatis (as MORTAL) |
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