① The muzzle of an animal such as a dog is its nose and mouth.【n.(动物的)口鼻部】
②If you muzzle a dog or other animal, you put a muzzle over its nose and mouth.【v.给(狗等) 戴上嘴套】
③If you say that someone is muzzled, you are complaining that they are prevented from expressing their views freely.【v.使缄默;迫使…保持沉默】
①The mongrel presented his muzzle for scratching.
②He was convicted of failing to muzzle a pit bull.
③He complained of being muzzled by the chairman.
《经济学人》一篇关于摩洛哥民主政治的文章 Sex, lies and videotape 也出现了这个表达：
Used for telling someone, especially a child, that you hope they sleep well.
①Good night. Sleep tight. Sweet dreams tonight.
②Armed with that knowledge, good luck sleeping tight .
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