英语词组once in a blue moon是什么意思，短语翻译、用法及例句-英语词组固定搭配大全

词组	once in a blue moon
释义	●ˌonce in a blue ˈmoon (informal) very rarely 千载难逢；极难得；破天荒地◆Sue’s daughter only visits her once in a blue moon.苏的女儿很少来看她。
随便看	trembling trial trials trials and tribulations tribulations tribute trice trick trick or treat tricks tried tried and tested tried and tested/trusted tried and true tried and trusted trim trim your sails trip trip off the tongue Trojan trolley trooper trot trouble troubled

英语词组固定搭配大全包含20132条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。