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	请查阅词条：once in a blue moon idiom1
随便看	wallpapered wallpapering wall sconce walls have ears walls-have-ears wall socket wall something in wall something off wall something up wall sth in wall-sth-in wall sth off wall-sth-off wall sth up wall-sth-up Wall Street wall-street Wall Street Crash wall-street-crash wall-to-wall wall-to-wall wall-up wally walnut walnut shell

英汉双解词典包含207842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。