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n.(电话)送话口;(乐器)吹口;喉舌
He put his hand over the mouthpiece and called his wife to the phone. 他用手捂住话筒,叫妻子来接电话。
They would breathe it as a powder into their lungs, through a mouthpiece device. 他们可以通过一种吹口装置将胰岛素粉末吸入肺部。
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