单词once-in-a-lifetime
un.: 彻底；一不做；千载难逢的
网络: 一生仅有一次的；一生一次的；一个一生难求
千载难逢的,终生难再的
彻底,一劳永逸地;一不做,二不休
I"ve never been able to share it with so many people, share what I love. . . it"s a once in a lifetime movie so I"ll never have this again.
我的片子从没有和很多人分享过，和别人分享我喜欢的东西…这是一生中只此一部的电影，我不会再有这样的机会。
George Ballas became known as the "Weed King" . As he once told the Houston Chronicle, "A Weed Eater comes along once in a lifetime. "
乔治•巴拉斯以“除草大王”而闻名世界。他曾经对《休斯顿纪事报》说：除草器将伴随着人们的一生。
I understand that it"s a once-in-a-lifetime chance to see these paintings on walls quite near to one another.
我知道这是个一生只有一次的机会，能看到达芬奇这么多珍品一齐排列在墙上。
"Participating in a race at the Olympics was a once-in-a-lifetime experience, " she said.
她说：“能参加奥运会比赛是人生中难得的经历。”
With acquaintances once in a lifetime is often considered enough.
与熟人握手一生一次就足够了。
Colleen said she had just about given up but kept trying because she knew it would be a once in a lifetime opportunity.
Colleen说她几乎都快放弃了，但是还是继续尝试，因为她一生中或许只有这么一次机会。
This is literally a once-in-a-lifetime experience, because in just a few months" time, all this would have melted to nothing.
它真的是一生只有一次的经历，因为仅在几个月后，所有这一切都将融化为乌有。
Not really, I think the once in a lifetime experiences I have been lucky enough to have, more than make up for that.
没觉得，我认为仅有一次的人生经历，我已经过得足够幸运，弥补那些绰绰有余了。
Education Secretary Arne Duncan describes the stimulus as a "staggering opportunity, " the kind that comes once in a lifetime.
教育部长阿恩邓肯把刺激方案描述成一个“惊人的机遇”，一个人生中只有一次的机遇。
It"s not crazy at all. It"s what happens when a once-in-a-lifetime athlete comes along and inspires the next generation.
其实这并不疯狂。当一个前所未见的天才运动员走上前，引领和激励下一代人时，就会出现这样的情景。