单词 | lifespan |
释义 | lifespan lifespan /ˈlaɪf.spæn/ noun [C] ► C2 the length of time for which a person, animal, or thing exists: » The average human lifespan in the developed countries has increased over the last hundred years.» The project's lifespan is estimated at about five years.Thesaurus+: ↑Life and living |
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