lifetime

/ˈlaɪftaɪm/ (bre, ipa) · /ˈlaɪftaɪm/ (ame, ipa) · /ˈlīf-ˌtīm/ (ame, mw) · /ˈlaɪf.taɪm/ (bre, ipa) · /ˈlaɪf.taɪm/ (ame, ipa)

lifetime — 名詞

  • lifetimesingular
  • lifetimesplural

1. the whole period of time that a person, animal, or thing exists, from when it be

1.名詞B1
釋義

一生

人或事物存在的完整時期

the whole period of time that a person, animal, or thing exists, from when it begins to when it ends

例句

Shirin has seen many changes in her lifetime, from black-and-white TV to smartphones.

Shirin 在她一生中見證了許多改變，從黑白電視到智慧型手機。

in [possessive] lifetime as a time reference frame

The new bridge is designed to last a lifetime without needing major repairs.

這座新橋的設計目標是能使用一輩子，不需要大規模維修。

last a lifetime = remain functional forever

同義詞
  • lifespan

    more factual or scientific; often used for animals, plants, or products rather than personal experience

  • life

    broader meaning that includes experiences and quality, not just duration

  • existence

    more formal and abstract; used for things that are not alive

2. the period of time that a product, machine, or material continues to function pr

2.名詞B2
釋義

使用壽命

物品能正常使用的時間長度

the period of time that a product, machine, or material continues to function properly or be safe to use

例句

The battery lifetime of this laptop is about eight hours of normal use.

這台筆記型電腦的電池續航時間在正常使用下約為八小時。

battery lifetime = duration a battery powers a device

Proper maintenance can extend the lifetime of your car's engine by several years.

適當的保養可以將汽車引擎的使用壽命延長好幾年。

extend the lifetime = make something last longer

同義詞
  • durability

    focuses on how well something resists wear or damage, not a specific time period

  • shelf life

    used specifically for food or products that decay or expire

  • service life

    more technical; used in engineering or manufacturing contexts

lifetime — 形容詞