Explanation: Kou-law wife and the mother; Bo pig family quarrels. Originally referred to the quarrel between mother and daughter ◇ also be used against the other. Source: "Zhuangzi foreign objects" no empty room, the women regardless Bo pig. " Examples: But often the family but will decline ~, Shusao means a battle of wits, moved to the literary scene. ★ Lu Xun "且介亭杂文 the end of series A and on the anti-Japanese united front Xu Maoyong"