lifespan
n. 寿命；使用期限
近义词：life-time，lifetime，life，
英英释义
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"
例句
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。