clef/klef; klɛf/ n(music 音) symbol at the beginning of a stave showing the pitch of the notes 谱号（谱表开始处的符号, 用以表示音符的音高 treble/bass/alto clef 高音[低音/中音]谱号. =>illus at music 见music之插图.
牛津英汉双解词典