恩绝义断

Explanation: Grace: Grace, kindness; justice: brotherhood, mutual affection. Conjugal love and brotherhood completely cut off, described as affection 　　Usage: As attribute, predicate, complement; used between friends or relatives 　　Source: Yuan Guan Hanqing "Lu Zhai Lang" Third off: "What grace never defined cable break off to write the book." Thesaurus:  En-off means must