新东方-柯林斯雅思备考词典

lifespan

英 [ˈlaɪfspæn]

[NOUN]

词汇频率：

拼写变体：

又拼作 life span

NOUN. 名词

lifespans
1. [C, U 有变体名词] （人或动植物的）寿命
The lifespan of a person, animal, or plant is the period of time for which they live or are normally expected to live.
双语例句
例：
A 15-year lifespan is not uncommon for a dog.
15年的寿命对狗来说并非罕见。
2. [C 可数名词] （产品、组织或想法的）使用期限
The lifespan of a product, organization, or idea is the period of time for which it is expected to work properly or to last.
双语例句
例：
Most boilers have a lifespan of 15 to 20 years.
大部分锅炉的使用期限是15到20年。

新东方在线雅思考试热词