劍橋詞典[ 不可數(shù)或單數(shù)名詞：沒有複數(shù)形式的名詞 ] the system of broadcasting using digital electronic signals that carry sound and information about what is being broadcast 數(shù)字廣播 [ 可數(shù)名詞：有複數(shù)形式的名詞 ] a piece of electronic equipment used to listen to digital radio broadcasts 數(shù)字式收音機(jī) 返回 digital radio