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
某人或某物的生命持续时间。；寿命；功能期；终生
The duration of a person's life or the period during which something functions.
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。
用法提示：在这里，'lifetime'作为名词，表示一段人生历程。
This is a once-in-a-lifetime opportunity.
这是一个千载难逢的机会。
用法提示：'lifetime'在短语'once-in-a-lifetime'中用作名词，表示一生中只一次。
He spent a lifetime studying ancient civilizations.
他花了一生研究古代文明。
用法提示：'lifetime'作为名词，表示整个生命的时间长度。
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。
grammar · medium
易错句子I have a life time experience.
正确表达I have a lifetime experience.
‘lifetime’是一个单词，不能分开写成‘life time’。
grammar · medium
易错句子He spent lifetime learning English.
正确表达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’。
lifespan强调生物或事物的存活或功能期限，常用于科学语境；lifetime泛指人或事物从开始到结束的整个时期。
life是广义的‘生命’或‘生活’，而lifetime特指生命的持续时间，强调时间长度。
lifelong是形容词，用于描述持续一生的特质或行为；lifetime是名词，指生命或事物存在的时间段。
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。
常用于衡量一生的时间长度
指从开始到结束的整个时间段
强调事物存续的时间长短
指生命或事物存在的整个时期
与生命有限性相关，是终生的终点
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。
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Includes Synonyms & Antonyms
Expand your vocabulary with synonyms and antonyms.
Dictionary facts from AI_FALLBACK, DICTIONARY_API_DEV, ECDICT, WIKTIONARY.