mouthpiece

['mauθpi:s]

n.(电话)送话口, (乐器)吹口, 喉舌

例句与用法：

A woodwind instrument having a straight, cylindrical tube with a flaring bell and a single-reed mouthpiece, played by means of finger holes and keys.

单簧管，黑管一种管乐器，有直的圆筒形管身和一个外敞的管口及一个单簧吹口，以指孔和键的方式演奏

A toy instrument with a membrane that produces a sound when a player hums or sings into the mouthpiece.

卡祖笛一种当吹奏者向吹口处低吟或哼唱时一个膜能够发出声音的玩具乐器

详细释义：

n.[C]

1. (乐器的)吹口; (电话机的)送话口; (容器等的)口

the mouthpiece of a pipe

管子的口

2. (拳击手的)护齿套

3. 代言人; 喉舌

The newspaper was only a mouthpiece of certain rich people.

这家报纸不过是某些富人的喉舌。

4. 【俚】律师