Noun:

1. a part that goes over or into the mouth of a person;

   "the mouthpiece of a respirator"
   

2. an acoustic device; the part of a telephone into which a person speaks

3. a spokesperson (as a lawyer)

4. (especially boxing) equipment that protects an athlete's mouth

5. the tube of a pipe or cigarette holder that a smoker holds in the mouth

6. the aperture of a wind instrument into which the player blows directly

representativen.代表；众议员；典型adj.代表的；典型的；代表制的

communicantn.领圣餐的人；报导者；通知者adj.传达的

openingn.开口；开始；张开；开幕；空缺adj.开头的动词open的现在分词.

spokesmann.发言人

interpretern.口译员；演绎的人；[计算机]解释程序

organn.器官；风琴；机构；喉舌；报刊

spokespersonn.代言人；发言人

agentn.代理人；代理商；药剂；特工人员

ambassadorn.大使；代表

delegaten.代表v.派 ... 为代表；委派；授权；委托

messengern.报信者；先兆

embouchuren.(管乐器的)吹口；河口

gumshieldn.护齿套

mouthn.嘴；口；开口；河口v.不出声说；装腔作势地说；喃喃地说

1. 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。
2. 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。
3. The newspaper was only a mouthpiece of certain rich people.
   这家报纸不过是某些富人的喉舌。