| 释义 |
once-in-a-lifetime 主要翻译 once-in-a-lifetime adj (opportunity: very rare) (机遇等)一生一次的，千载难逢的The brothers thought the trip around the world was a once-in-a-lifetime opportunity. 复合形式： once in a lifetime adv (extremely rarely) (机遇等)一生一次，千载难逢A chance like this only comes along once in a lifetime. |