n.(名词)

1. 一生，终身，一辈子，有生之年
2. 寿命
3. 使用期，使用年限，使用期限，有效期限
4. 【原子能】寿命，寿期
5. 连续操作时间
6. 生活期，生存时间，存在期

adj.(形容词)

1. 一生的，终身的

n.(名词)

1. [C]一生,存在期 duration of sb's life or sth's existence

Noun:

1. the period during which something is functional (as between birth and death);

   "the battery had a short life"
   "he lived a long and happy life"
   

1.一生；终生
Alifetime is the length of time that someone is alive.

e.g. During mylifetime I haven't got around to much travelling.
我一生中没怎么去旅行过。
e.g. ...a trust fund to be administered throughout his wife'slifetime.
为他妻子终生管理的信托基金

2.（事物的）存在期，使用期
Thelifetime of a particular thing is the period of time that it lasts.

e.g. ...thelifetime of a parliament.
议会的届期
e.g. ...a satellite'slifetime.
卫星的使用期

3.终生难遇的；千载难逢的
If you describe something as the chance or experienceof a lifetime, you are emphasizing that it is the best or most important chance or experience that you are ever likely to have.

e.g. This could be not just the trip of alifetime but the experience of alifetime.
这可能不仅是一趟终生难遇的旅行，也将是一次终生难遇的体验。

1. 寿命：*1 寿命(lifetime)是指显示/像素降至其最初指定的发光性数一半所花的时间. 寿命的评估是以非常高的最初发光位准加速测试单纯的测试装置为基础,并使用这些数据计算出在较低的亮度位准下所预测的发光寿命.

2. 生命期：含有双建结构的烯类与氢氧基的 反应活性远大於饱和的烷类,以异戊间二烯来说,其在 大气中被 OH 基氧化的速度极快,生命期(lifetime)约 0.2 天,相对於丙烷(约 18 天),

3. lifetime

3. 一生：你们也许很少联络,也许常常在一起,在这长长的一生(lifetime)中,在彼此的心中都保留了一份惦念,一份嘱咐,就算他去到天涯海角,就算过了许多许多年,就算再见面时,早已是人非物亦非了,你仍然会那样深刻的记着这样一个人,这已经足够了.

He met with many a setback in his lifetime.

他一生中遭到过许多挫折。

The century plant blooms only once in its lifetime.

龙舌兰在其一生中只开一次花。

Learning is the enterprise of a lifetime.

学习是终身的事业。

These experiences can help make saving money a lifetime habit.

这些经历能使存钱成为终身的习惯。

Their lifetime is stretched by their motion.

由于它们的运动其寿命延长了。

Eighty years constitute a longer-than-average lifetime.

八十岁高于平均寿命。

His diary was not published during his lifetime.

他的日记在他生前未曾发表过。

a lifetime of experience

毕生的经验

in the lifetime of the present government

在本届政府的任期内

An opportunity like this comes once in a lifetime.

像这样的机会一生也许只会遇到一次。

a once-in-a-lifetime experience

一生只会拥有一次的经历

During my lifetime I haven't got around to much travelling.

我一生中没怎么去旅行过。

...a trust fund to be administered throughout his wife's lifetime.

为他妻子终生管理的信托基金

...the lifetime of a parliament.

议会的届期

...a satellite's lifetime.

卫星的使用期

This could be not just the trip of a lifetime but the experience of a lifetime.

这可能不仅是一趟终生难遇的旅行，也将是一次终生难遇的体验。

Righteous men are greater after their death than during their lifetime.

正人君子死后比生前更受崇敬.

People always come into your life: for a reason, a season, and a lifetime.

人们走进你的生活,或者是为了一个原因, 或者他们只停留一段时期, 或者他们永远与你相随.

We can't expect one to change the habits of a lifetime in a short time.

我们不能期望一个人一辈子养成的习惯短时期就能改变.

They saved for years for their trip of a lifetime to Hawaii.

为了一辈子能到夏威夷一游,他们储蓄了好几年.

It would be foolish to let such an opportunity slip; it's a chance of a lifetime.

坐失这个良机, 那是太傻了,这是一生中难得的机会.

I have had enough obloquy for one lifetime.

我一辈子受够了诽谤.

These are words which may not be seen again in a lifetime of reading.

这些词也许今后一辈子也不会再读到了.

Getting that story was the scoop of a lifetime for the journalist.

获得那个消息是这位记者终身难逢的独家新闻.

It's the chance of a lifetime.

这是一生中难得再遇到的机会.

He wrote many books during his lifetime.

他一生著作甚多.

It would require more than a lifetime.

这件事一辈子也做不完.

Then came an invitation to Martinique , an island in the French Caribbean. It was chance of a lifetime.

然后被邀请到法属加勒比海的马提尼克岛, 这真是千载难逢的机会.

This bike will last me a lifetime.

这辆自行车够我用一辈子了.

There is no need to think that you are sentenced to a lifetime of unhappiness.

没必要认为你就注定一辈子得不到幸福.

His diary was not published during his lifetime.

他的日记在他生前未曾发表过。

I want to take advantage of your lifetime of scholarship.

我希望能够用到您一生的学识。

Say's writings reached a wide audience during his lifetime.

在塞伊有生之年，他的作品拥有大量的读者。

I've spent a lifetime fighting against racism and prejudice.

我一辈子都在同种族主义和偏见作斗争。

1. He hopes to travel more by air in his lifetime
   他希望在有生之年多乘几次飞机旅行。
2. In your lifetime you must have seen many changes.
   你在一生中一定目睹了很多变革。
3. He was great but made some serious mistakes in his lifetime.
   他是个伟大的人,但在他的一生中也犯了许多严重的错误。
4. The Party's lifetime is short.
   这个政党的存在时间很短。

of a lifetime

千载难逢的好机会 an exceptional opportunity

动词+～

• lifetime">fill one's lifetime充满人生
• lifetime%20of%20study%20to">give a lifetime of study to对…研究一辈子
• lifetime">guide through lifetime指引人生
• lifetime">last a lifetime能用一辈子
• lifetime">record lifetime记载人生
• lifetime">seek lifetime追求一生
• lifetime">spend lifetime花费一生
• lifetime">take a lifetime需要毕生时间

～+名词

• lifetime%20job">lifetime job毕生的工作

介词+～

• lifetime">during one's lifetime在世期间
• lifetime">in sb's lifetime在某人的一生中
• lifetime">the chance of a lifetime千载难逢的机会
• lifetime">the holiday of a lifetime一生难忘的假期

～+介词

• lifetime%20of%20a%20television%20set">lifetime of a television set电视机的使用寿命
• lifetime%20of%20service">lifetime of service使用年限

• My father never said one word to my mother in her whole lifetime.

  出自：C. Odets

• The gifts tax..would be a tax on lifetime gifts.

  出自：Country Life

n.(名词)

1. lifetime的基本意思是“一生,生存期”,指人从出生到死亡的一段时间,也可指某物〔事物〕存在的整个时期。
2. lifetime在句子中有时也可以单独使用,不需用介词。

n.(名词)

下面三句所表达的意思不同:

His grandma never travelled by air in her lifetime.

他祖母一辈子都没坐过飞机旅行。

(表示一辈子没乘过)

His grandma has never travelled by air in her lifetime.

至今他祖母还没有坐过飞机旅行。

(从出生到现在不曾坐过)

His grandma said she had never travelled by air in her lifetime.

他祖母说她从没坐过飞机旅行。

(从出生到说话时还未坐过)