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1. When the ancient princes joined the alliance, they cut off the ox ears and took blood to fill the center of the town, and put the ox ears on the plate. The main alliance took the oath of tasting the princes to show their loyalty. "Zhou Li Shimonoseki has a capacity": "Praise Niuer Peach Blossom." Zheng Xuan's note: "The corpse alliance cuts the cow's ear and gets the blood to help it. The blood is in the town, and the peach blossoms help it." Later used to refer to people who are leaders in some ways.