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the lifespan of [noun]
表示某事物的预期寿命。
The lifespan of a butterfly is often short.
蝴蝶的寿命通常很短。
寿命；生命长度
先理解核心含义，再看它在真实句子里的用法。
寿命；生命长度
The length of time that a living thing lives.
The lifespan of a butterfly is often short.
蝴蝶的寿命通常很短。
生物体的寿命。
The length of time for which an organism lives.
某物存在或有效的时间长度。
The length of time for which something exists or is current, valid, or usable.
The average human lifespan has increased significantly over the past century.
人类的平均寿命在过去一个世纪里显著增长。
These batteries have a lifespan of about 500 charge cycles.
这些电池的预期使用期限约为500次充电循环。
The lifespan of a houseplant depends on how well it is cared for.
室内植物的寿命取决于其养护状况。
表示某事物的预期寿命。
The lifespan of a butterfly is often short.
蝴蝶的寿命通常很短。
用于具体说明寿命时长。
This battery has a lifespan of about 5 years.
这种电池的寿命约为5年。
用形容词修饰lifespan，如long, short, average等。
Dogs generally have a long lifespan compared to other pets.
与其他宠物相比，狗通常寿命较长。
Not this
This machine has short lifespan.
Use this
This machine has a short lifespan.
寿命(lifespan)是可数名词单数，前面需要加冠词'a'。中文中无冠词概念，学习者容易遗漏。
Not this
This battery lifespans for 5 years.
Use this
This battery has a lifespan of 5 years.
Lifespan是名词，不能用作动词。应使用'has a lifespan of'结构。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
长寿命
Some species of turtles have a very long lifespan.
有些种类的乌龟寿命很长。
短寿命
The mayfly has an extremely short lifespan of only one day.
蜉蝣的寿命极短，只有一天。
平均寿命
The average lifespan of a domestic cat is around 15 years.
家猫的平均寿命约为15年。
人类寿命
Advances in medicine have significantly increased the human lifespan.
医学进步显著延长了人类寿命。
产品寿命
To reduce electronic waste, manufacturers should design products with a longer product lifespan.
为减少电子垃圾，制造商应设计寿命更长的产品。
Use lifespan naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
life + span：生命跨度，想象一条线从出生到死亡的长度。
中性至正式语体。常用于描述生物生命周期或物品预期使用期限，在科技、日常等语境中均适用。
可数名词，后常接of短语表示‘...的寿命’。
Dictionary facts from ECDICT, WIKTIONARY.