可數(shù)名詞：
1.說話的人，講演者，喇叭
2.揚(yáng)聲器 英語解釋

the presiding officer of a depberative assembly

someone who expresses in language; someone who talks (especially someone who depvers a pubpc speech or someone especially garrulous)

electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance

extonsion speaker 附加揚(yáng)聲器

intercommunication speaker 內(nèi)部通話揚(yáng)聲器

speaker cone 揚(yáng)聲器紙盆

speaker impedance 揚(yáng)聲器阻抗

capacitor speaker 【電】 電容式揚(yáng)聲器

radio speaker 無線電擴(kuò)音器

crystal speaker 晶體揚(yáng)聲器

native speaker 說本族語的人

pm speaker 【電】 永磁話筒

the Speaker of the House 眾議院議長,下院議長

speaker n.[C] 1.說話的人，講演者，喇叭2.揚(yáng)聲器

speaker microphone 廣播傳聲器

speaker dependent 聲音辨識器

loud speaker n. 揚(yáng)聲器,喇叭

speaker phone 揚(yáng)聲器電話