lifespan

英 [ˈlaɪfspæn]

美 [ˈlaɪfspæn]

n.  寿命; 可持续年限; 有效期

复数：lifespans　

BNC.2369 / COCA.15281

牛津词典

noun

• 寿命；可持续年限；有效期
  the length of time that sth is likely to live, continue or function
  1. Worms have a lifespan of a few months.
     蠕虫的寿命为几个月。

柯林斯词典

• N-VAR （人、动植物的）寿命，预期生命期限
  Thelifespanof a person, animal, or plant is the period of time for which they live or are normally expected to live.
  1. A 15-year lifespan is not uncommon for a dog...
     15年的寿命对狗而言是比较常见的。
  2. They have extended the potential life span of humanity everywhere.
     世界各地人类的预期寿命均有所延长。
• N-COUNT （产品等的）预期使用期限；（组织、想法等的）预期存在期限
  Thelifespanof a product, organization, or idea is the period of time for which it is expected to work properly or to last.
  1. Most boilers have a lifespan of 15 to 20 years.
     绝大多数锅炉有15至20年的使用期限。

英英释义

noun

• the period during which something is functional (as between birth and death)
  1. the battery had a short life
  2. he lived a long and happy life
  Synonym:lifelifetimelife-time

双语例句