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 难得有一次；极为罕见 It is only once in a blue moon that you get an opportunity like that. 你居然得到那么好的一个机会，真是千载难逢啊。
随便看	boastfulness boastfulness boastfulnesses boasting boasting boastingly boastingly boastings boastless boast-of boasts boasts' boast² boast¹ boat boatable boatage boatages boatbill boat-billed heron boatbills boatbuilder boatbuilder boatbuilders boatbuilding

英汉双解词典包含548777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。