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lifespan

美['laɪfspæn] 英['laɪfspæn]

n. 寿命；使用期限

近义词：life-time，lifetime，life，

Noun

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"

用作名词(n.)

Men have a shorter lifespan than women.男人的寿命比女人短。
Worms have a lifespan of a few months.蠕虫的寿命为几个月。
Password expiration policies are used to manage the lifespan of a password.密码过期策略用于管理密码的使用期限。

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