n.(電話)送話口；(樂器)吹口；喉舌
He put his hand over the mouthpiece and called his wife to the phone. 他用手捂住話筒，叫妻子來接電話。
They would breathe it as a powder into their lungs, through a mouthpiece device. 他們可以通過一種吹口裝置將胰島素粉末吸入肺部。
