英语词汇once in a blue moon怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	once in a blue moon
释义	once in a blue moon (informal) very rarely极少地；难得地；破天荒地 See also blue \| moon \| once
随便看	writhers writhes writhing writhingly writing writing away writing desk writing-desk writingdesk writing desks writing is on the wall writing paper writing-paper writingpaper writing papers writings writ large writs written written_1 written_2 written away written word wrong wrong_1

英汉双解词典包含314281条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。