亲如手足

Explanation: Hand-foot: that brother. As close as brothers. 　　Usage: Supplemental; for the predicate; with compliment, many described the profound friendship of friends 　　Source: Yuan Meng Hanqing "magic together Law," the fourth off: "If you want brotherhood brotherhood, how the heart will be brothers under the Health and life loss?" 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, Situation over body, Situation with body