鳌头独占

Explanation: Compared top the list or number one. 　　Source: Yuan Anonymous "Chen states that sold rice" Wedge: "before the house had offered peace and prosperity policy, the first champion." 　　Examples: China currently has more than the Japanese silkworm cocoon production, the international silk market, we have ~ a. ★ "Xinhua Digest" 1987, No. 5