言若悬河

Explanation: Described as eloquent, endless talking. With the word class hanging river. " 　　Source: "Northern History Biography Pei Yun" Yun also machine debate, the legal theory, the words if suspended river, or heavy or light, chosen by the mouth, analysis of subtlety, caused when the people can not restrain. "See the eloquent." Thesaurus:  Introduction Class aboveground river