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 once in a blue moon adv: figurative (very rarely) SC 千载难逢地 SC 极为罕见地 He only calls once in a blue moon.
随便看	reaping reappear reappearance reappears reapplication reapplied reapply reappoint reappointment reapportion reapportionment reappraisal reappraise rear rear admiral reared rear-end rearer rearguard rearing rearm rearmament rearmost rearrange rearranged

英汉双解词典包含74752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。