dindexdayfly./dey-flahy/US // ˈdeɪˌflaɪ //UK // (ˈdeɪˌflaɪ) //白日飞,苍蝇,萤火虫,白日梦Definitionsn.noun · 名词1. plural day·flies.›a mayfly.Level 5More words in d →