mouthpiece

音标发音

Putin has given the high-living Berlusconi "lavish gifts" and lucrative energy contracts, and Berlusconi "appears increasingly to be the mouthpiece of Putin" in Europe, according to one cable.
普京跟贝卢斯科尼签署了一项能带来丰厚收益的能源合作合同。而贝卢斯科尼在处理欧洲事务上，更是成了普京的代言人。
After all, the People's Daily, the official mouthpiece of the Communist Party, complained just a week before my episode was to air that dating shows were "vulgar.
毕竟官方喉舌人民日报在我那期节目前一个星期就撰文批评了速配节目“低俗不堪”。
How did you decide the internet was the best mouthpiece for your views?
你如何确定互联网就是你观点的最好代言人？

A more official way of getting information is through a company or government mouthpiece.
Government-run media could also be called a mouthpiece.

Thelonious was so eccentric and non-verbal, I really became his mouthpiece to the public.
NPR: Excerpt: 'Alive at the Village Vanguard'
But is there life beyond their public-facing function as the corporate mouthpiece and information hub?
FORBES: Why Your Old Corporate Website Should Die

(PIECE OF EQUIPMENT) the part of a phone, musical instrument, or other device that goes near or between the lips
(PERSON/NEWSPAPER) a person or a newspaper that only expresses the opinions of one particular organization

The mouthpiece of a telephone is the part that you speak into.
The mouthpiece of a musical instrument or other device is the part that you put into your mouth.
The mouthpiece of an organization or person is someone who informs other people of the opinions and policies of that organization or person.