n.动物之鼻口；口络；枪口
v.戴口络于；使缄默
He caught hold of the dog by its muzzle. 他抓住狗的口鼻，把它逮住了。
The soldier depressed the muzzle of a gun. 士兵把枪口放低。
You shall not muzzle the ox while he is threshing. 牛在场上踹谷的时候
The President wanted to muzzle the press. 总统企图遏制新闻自由。
