Definition
这是一个四字成语，字面意思是“一旦离去就不再回来”，比喻时光、青春、机遇等一旦消逝就再也无法挽回。常用于感叹过去的岁月或错过的机会，带有惋惜和不可逆的语气。作为整体使用，后面不再接宾语。
v.p.
(set phrase) gone never to returnonce gonenever to be seen again(figurative) irretrievably lost (of youth, opportunities, an era, etc.)
Examples
- 一去不复返，。Qīngchūn yī qù bú, suǒyǐ wǒmen yào hǎohǎo zhēnxī měi yì tiān.Youth never returns, so we must cherish every day.
- 一去不复返，。Nàge chúnzhēn de niándài yǐjīng yī qù bú, zhǐ néng liú zài jìyì lǐ le.That innocent era has gone never to return; it can only remain in memory.
- 一去不复返，。Jīhuì yī qù bú, yídàn cuòguò jiù zài yě bù huì yǒu le.Opportunities never return; once you miss them, they won't come again.
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