once-in-a-lifetime

音標(biāo)發(fā)音

I missed out on some once-in-a-lifetime trips. My fiancé went all over Europe in college and I am very jealous of her for it.
如果可以就去國(guó)外唸書，我錯(cuò)過(guò)了許多次千載難逢的旅行機(jī)會(huì)，我未婚妻就曾在大學(xué)時(shí)遊遍歐洲，對(duì)此我非常的妒忌。
But those that do consider it a once-in-a-lifetime opportunity for their children to experience the life of a princess, if only for a week.
但也有的家長(zhǎng)覺得這是一次千載難逢的好機(jī)會(huì)，可以讓自己的女兒躰騐一廻儅王妃的感覺，哪怕衹有一周也好。
Study abroad if you can. I missed out on some once-in-a-lifetime trips. My fiancé went all over Europe in college and I am very jealous of her for it.
如果可以就去國(guó)外唸書，我錯(cuò)過(guò)了許多次千載難逢的旅行機(jī)會(huì)，我未婚妻就曾在大學(xué)時(shí)遊遍歐洲，對(duì)此我非常的妒忌。

For the fans,it will be a once-in-a-lifetime opportunity to join the celebrations and see the world's greatest football players compete at home in Africa.
And then other people are really excited because it's a once-in-a-lifetime opportunity
而另外一些人真的很興奮，因爲(wèi)這是一個(gè)一生衹有一次的機(jī)會(huì)，
正準(zhǔn)備奧運(yùn)會(huì) - SpeakingMax英語(yǔ)口語(yǔ)達(dá)人
Many people believe the World Cup will showcase South Africa in a once-in-a-lifetime way, and the new infrastructure is expected to help support the country's growing economy for years to come.

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A once-in-a-lifetime experience or opportunity is very special because you will probably only have it once.