同室操戈

Explanation: In the same room: one, that one of us; operation: pick up; Ge: ancient weapons. Apply on fixed guns and knives. Refers to the brothers quarrel. Refers to the internal struggle. 　　Usage: The main predicate; as predicate, object; containing derogatory 　　Source: Southern Song Fan Ye "Han Zheng Xuan Chuan": "Kang spear into my room to speak I almost attacked me?" 　　Examples: For the Song scholars, it is not the first attack also Confucian, Yang and ~ carry on. (Qingjiang fan "Song Xueyuan Yuen Kee order" volume) 　　Riddle: Yanwu Office; fellow martial arts Thesaurus:  trouble breaks out at home, Screen wall facing the gate of a chinese house , , interior Of disaster, brother quarrelling between themselves, Cannibalism, burn beanstalks to cook beans, He fried acute phase, internal strife; brothers fight among themselves, Zi Xiang fish, Fried too fast relative to Antonym Group:  One turn, Germany as one of a, be of one heart and one mind, Trinity, As close as body, be finger and glove with sb., brotherly feeling, city being under siege, share a bitter hatred of enemy, alike Adversary generous, join hand in hand, with one mind, be in the same boat, Large contingent Yajing, be bound together like brothers and sisters, pull together and work hard as a team, brotherliness, Enemy state foreign aggression, A common danger causes common action, as well blended as milk and water, Qun-Wei Group bile, Auxiliary car dependency