lifetime
gb/lˈaɪftˌaɪm/ us/lˈaɪftˌaɪm/
A2
英语
~ 4800
义项
0 个义项
名词
A2
quantity
1
Entire span of a person's life
The whole time that someone is alive.
用法模式：
[someone]'s lifetime
常见错误：
Learners sometimes confuse 'lifetime' with 'lifespan'. 'Lifetime' is often used for people and can be more personal or emotional, while 'lifespan' is more neutral or scientific.
近义词
lifespan (Often used for both people and animals; slightly more scientific in tone.)
反义词
moment (Refers to a very short period of time, the opposite of an entire life span.)
搭配
in my lifetime
|during his lifetime
|over a lifetime
|average lifetime
主题
daily life
|time
|personal
|core_vocabulary
例句
- She achieved more in her lifetime than many do in several.
- He collected stamps throughout his lifetime.
- During her lifetime, she traveled to over 50 countries.
- My grandfather saw many changes over his lifetime.
- The invention changed the course of his lifetime.
学习者例句
- He worked hard all his lifetime.
- She met many people in her lifetime.
- In my lifetime, I have seen big changes.
- They were friends for a lifetime.
名词
B1
quantity
2
Time something remains usable
The time something can be used before it stops working well.
用法模式：
[something]'s lifetime
近义词
service life ('Service life' is more technical and often used in engineering contexts.)
反义词
failure ('Failure' marks the end of usefulness, the opposite of the usable period.)
搭配
battery lifetime
|product lifetime
|system lifetime
|service lifetime
主题
technology
|products
|time
例句
- The battery has a lifetime of about five years.
- Regular maintenance can extend the lifetime of your car.
- This paint offers a longer lifetime than standard brands.
- The software's lifetime is expected to be at least a decade.
学习者例句
- This phone has a short battery lifetime.
- Good care will make the bike's lifetime longer.
- The light bulb has a long lifetime.
名词
B1
event
3
Once-in-a-life opportunity
A very special chance that you will probably have only once in your life.
用法模式：
[a/an] lifetime [opportunity/experience]
近义词
once-in-a-lifetime chance ('Once-in-a-lifetime' is a fixed phrase emphasizing rarity.)
反义词
everyday occurrence ('Everyday occurrence' refers to something ordinary and frequent, opposite of rare.)
搭配
a lifetime opportunity
|a lifetime experience
|a trip of a lifetime
主题
experiences
|personal
|opportunity
|time
|daily_life
例句
- Winning that scholarship was the opportunity of a lifetime.
- Climbing Mount Everest was truly the experience of a lifetime.
- Meeting the president was a lifetime moment for her.
学习者例句
- This trip is the chance of a lifetime.
- It was the best day of my lifetime.
- Meeting my hero was a lifetime experience.
语法
词典原形
lifetime
IPA
GB/lˈaɪftˌaɪm/
US/lˈaɪftˌaɪm/
音节与重音
life - time （2 个音节）
Stress on 1st syllable (life)
词形变化
Noun
- Base: lifetime
- Plural: lifetimes
词族
相关表达
(the) chance of a lifetime
1/ðə t͡ʃˈæns əv ə lˈaɪftˌaɪm/
fixed phrase
(Best) rare opportunity ever
(The) best and rarest chance you will have in your life.
例句
- "Getting that internship was the chance of a lifetime for her career."
- "Winning the competition gave him the chance of a lifetime to perform on stage."
(the) experience of a lifetime
1/ðə ɪkspˈɪɹiəns əv ə lˈaɪftˌaɪm/
fixed phrase
(the) experience of a lifetime
(the) experience of a lifetime
once in a lifetime
1/wˈʌns ˈɪn ə lˈaɪftˌaɪm/
fixed phrase
Happens only once ever
Happening only one time in your whole life.
例句
- "This concert is a once in a lifetime event," said the promoter.
- "Traveling to Antarctica was a once in a lifetime experience for me."