肝胆楚越

Explanation: Hepatobiliary: metaphor is closely related; Chu Vietnam: the two kingdoms during the Spring and Autumn, although the land is connected, but the relationship is not good. Metaphor has a close relationship between the parties, do not care about each other or each other to become hostile. 　　Usage: Joint type; as the predicate attribute; that, although still far from near 　　Source: Zhuang, "Zhuangzi De filling character": "those who from their different view of the liver and gallbladder, the more also Chu; since its the same as those of, all things are one people."