a happening that occurs only once and is not repeated
one-off例句
Her novel was just a one-off -- she never wrote anything as good as that again.
她的小说是她绝无仅有的作品--後来她再也没写出那样好的东西。
one-off详细解释
one-off adj.Chiefly British （形容词）【多用于英国】 Happening, done, or made only once.一次性的：曾经只发生或做过一次的n.（名词）Something that is not repeated or reproduced.一次性事物：不能重复或不可以再生的事物
