情同骨肉

Explanation: Described as close as one family. 　　Usage: The main predicate; as the predicate attribute; describe the close relationship like a family 　　Source: Ming Luo, "Three Kingdoms" 47th: "I and the public review, as sisters and brothers, offer path to close the book for the unknown prime minister is willing to accommodate me?" Thesaurus:  all is common; be on very intimate terms; with no distinction between what is one's own and what is another's, Regardless of international boundaries, call cousins with, close as brothers, Situation over body