喙长三尺

Explanation: Beak: the mouth. Mouth three feet long. Identified that describe the people who are good. 　　Usage: The main predicate; as predicate, attributive; describe people eloquent 　　Source: He replies, "Zhuang Zi Xu no ghosts": "Hill is willing to beaked three feet." Thesaurus:  Articulate, On the eloquence of high Antonym Group:  keep silent, Closed Tibetan Tongue