also mouth-piece, 1680s, "casting fitted on an open end of a pipe, etc.," from mouth (n.) + piece (n.). Meaning "piece of a musical instrument that goes in the mouth" is from 1776. Sense of "one who speaks on behalf of others" is from 1805; in the specific sense of "lawyer" it is first found 1857.
双语例句
1. He showed him how to blow into the ivory mouthpiece.
他给他演示如何吹奏象牙吹口乐器。
来自柯林斯例句
2. He bellowed information into the mouthpiece of his portable telephone.
他对着手机话筒吼了一通信息。
来自柯林斯例句
3. Blake held his handkerchief over the mouthpiece to muffle his voice.
