词汇 | lifespan |
释义 | lifespan noun [ C ] uk/ˈlaɪf.spæn/ us/ˈlaɪf.spæn/ C2 寿命;可持续年限,有效期 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. 发达国家的人均寿命在过去的100年间延长了。 The project's lifespan is estimated at about five years. 预计这项工程为期5年左右。 Synonyms: life (TIME ALIVE)lifetime See also: span noun (TIME) |
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