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	whacky whale whaleboat whalebone whalebone whale whale oil whaler whale shark whale watch whale watching whaling wham whammy whang wharf wharfage what whataboutery whataboutism whatchamacallit what do you know? whatever whatevs what for? what is more

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。