割臂之盟

Explanation: Cutting arm: arm punctured; League: Covenant. Originally referred to any of the Warring States Period Meng Lu Zhuanggong and cut his arm, _set_ting marriage. With a cut arm after the oath refers to Ning about (referring to men and women engaged about secret). 　　Source: "Zuo Zhuang three years," the early public building units, the party's temporary, see Meng Ren, from the. Bi. The words to his wife, promised, cutting the public arm of AU. Yan like twins. " 　　Examples: Zhao Gong taboo, such as the name of Mencius, Zhuang Gongjiang ~, is the marriage ceremony of waste, and that prostitution secluded from the chaos of all working for us. (Qing Qing Li Ruzhen "Flowers in the Mirror" fifty-back)