柯林斯詞典boom box (boom boxes) 1. N-COUNT A boom box is a large portable machine for playing music, especially one that is played loudly in public by young people. 便攜式音響[美國(guó)英語(yǔ)] [非正式] 返回 boom box劍橋詞典a large radio and CD player you can carry with you 大型手提式收錄機(jī) 返回 boom box