| 单词 | once in a lifetime |
| 释义 | ● once in a ˈlifetime used to describe sth special that is not likely to happen to you again （可能）一生只有一次◆ An opportunity like this comes once in a lifetime . 像这样的机会一生也许只会遇到一次。◆ a once -in -a -lifetime experience 一生只会拥有一次的经历See also lifetime |
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