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lifespan是什么意思

lifespan

英[ˈlaɪfspæn] 美[ˈlaɪfspæn]

n. （人或动物的）寿命，存在期，使用期，有效期；

复数：lifespans;

相关单词 lifespans

柯林斯高阶英汉双解学习词典释义

N-VAR

（人、动植物的）寿命，预期生命期限

The lifespan of a person, animal, or plant is the period of time for which they live or are normally expected to live.
例句
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。 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

The lifespan of a product, organization, or idea is the period of time for which it is expected to work properly or to last.
例句
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。

英汉词典释义

n.
(人或动物的)寿命,预期生命期限
the lifespan of a mouse 老鼠的预期寿命
存在期;使用期;有效期

英英词典释义

Noun
1. the period during which something is functional (as between birth and death);
"the battery had a short life""he lived a long and happy life"

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