| 释义 |
life.span5laIf7spAnn [C]the length of time for which a person, animal or thing exists寿命The average human lifespan in the developed countries has increased over the last hundred years.发达国家的人均寿命在过去一百年中有了很大的提高。In the experiment, small animals were found to have a shorter lifespan than larger ones.实验中发现小动物比大的动物的寿命要短。The project's lifespan is estimated at about five years.该工程的寿命估计约为5年。
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