Word
life-time
/laɪftaɪm/
noun
寿命；一生
核心释义
the period of time during which something is alive or works
- 1.
寿命；功能期
the period during which something is functional (as between birth and death)
寿命；功能期；寿命
用法In use
The life-time of a butterfly is very short.
用法提示：life-time 在此句中用作名词，表示‘寿命’，即从出生到死亡的时间。
Regular exercise can increase your life-time.
用法提示：life-time 用作名词，指人的寿命长度。
The life-times of these ancient trees are measured in centuries.
用法提示：life-times 是 life-time 的复数形式，同样表示‘寿命’。
in one's life-time
表示在某人一生期间。
She achieved great success in her life-time.
她一生中取得了巨大成功。
a life-time of + noun
表示持续一生的某事物。
He had a life-time of experience as a doctor.
相关词与表达Connections
学习提示Learner notes
语法说明Grammar Note
可数名词，常用于单数形式表示寿命或有效期。
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.