n.喉舌；乐器的吹口；电话话筒；代言人 变形： 复数：mouthpieces 英英释义： mouthpiece[ 'mauθpi:s ]n.a part that goes over or into the mouth of a person"the mouthpiece of a respirator"an acoustic device; the part of a telephone into which a person speaksa spokesperson (as a lawyer)同义词：