1
in one's lifetime
She has never been to Europe in her lifetime.
她一生中从未去过欧洲。
一生；寿命；使用期限
lifetimes — plural of lifetime
先理解核心含义，再看它在真实句子里的用法。
一生；寿命；使用期限
The duration of a person's life or the period during which something functions.
She has never been to Europe in her lifetime.
她一生中从未去过欧洲。
某人或某物的生命持续时间。
The duration of the life of someone or something.
寿命；功能期
the period during which something is functional (as between birth and death)
She has dedicated a lifetime to teaching.
她一生致力于教学。
This is a once-in-a-lifetime opportunity.
这是一个千载难逢的机会。
He spent a lifetime studying ancient civilizations.
他花了一生研究古代文明。
She has never been to Europe in her lifetime.
她一生中从未去过欧洲。
He has dedicated a lifetime of service to the community.
他奉献了一生的服务给社区。
lifetime 用作定语，表示‘终身的’。
The product comes with a lifetime warranty.
该产品附带终身保修。
Not this
I have a life time experience.
Use this
I have a lifetime experience.
‘lifetime’是一个单词，不能分开写成‘life time’。
Not this
He spent lifetime learning English.
Use this
He spent a lifetime learning English.
‘lifetime’是可数名词，作‘一生’讲时前面需要加冠词或限定词，如‘a’或‘his’。
Choose the next layer that will help you use lifetimes with more confidence.
Includes Synonyms & Antonyms
Expand your vocabulary with synonyms and antonyms.
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
终身保证
This product comes with a lifetime guarantee.
这个产品有终身保证。
终身成就
He received an award for lifetime achievement.
他因终身成就获奖。
一生一次
Winning the lottery is a once-in-a-lifetime opportunity.
中彩票是一生一次的机会。
终身保修
The company offers a lifetime warranty on all parts.
该公司对所有零件提供终身保修。
终身供应
He won a lifetime supply of coffee.
他赢得了终身供应的咖啡。
终身会员
She purchased a lifetime membership to the gym.
她购买了健身房的终身会员资格。
一生一次的；千载难逢的
Winning the lottery is a once-in-a-lifetime opportunity.
中彩票是一生一次的机会。
千载难逢的机会
She was offered the chance of a lifetime to study abroad.
她得到了千载难逢的出国留学机会。
终生难忘的经历
His trip to Antarctica was the experience of a lifetime.
他的南极之旅是一生中难忘的经历。
一生一次，水流地下。
She had the chance of a lifetime to study abroad.
她有一次一生难求的出国留学机会。
这个机会一生只有一次。
Winning the lottery is a once-in-a-lifetime event.
中彩票是一生只有一次的事件。
Use lifetimes naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
生命（life）的时间（time）就是一生。
这个词语常用于描述人的一生或事物的整个存在期间，通常为中性语域。常见于传记、寿命讨论、产品保修等场景。
常用作可数名词，如 a lifetime
Dictionary facts from AI_FALLBACK, DICTIONARY_API_DEV, ECDICT, WIKTIONARY.