life span

柯林斯词典

lifespan /ˈlaɪfspæn/ (also life span) (lifespans)

• 1. N-VAR The lifespan of a person, animal, or plant is the period of time for which they live or are normally expected to live. (人或動植物的) 壽命

  A 15-year lifespan is not uncommon for a dog. 15年的壽命對狗來說竝非罕見。

• 2. N-COUNT The lifespan of a product, organization, or idea is the period of time for which it is expected to work properly or to last. (産品、組織或想法的) 使用期限

  Most boilers have a lifespan of 15 to 20 years. 大部分鍋爐的使用期限是15到20年。

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