劍橋詞典in jazz or popular music , a tune that continues or appears regularly in a piece of music while other parts change or are added （爵士樂或流行音樂的）重復(fù)樂段 The song is punctuated by long guitar riffs. 這首歌中穿插著很長的吉他演奏的重復(fù)樂段。 返回 riff