急先锋

Explanation: Analogy or positive charge in the former leading man. 　　Source: Ming Shi Nai "Water Margin" 13th back: "For his quick-tempered, pinch of salt into the fire, the state plane, as long as the Clear the Air, at the head race to call him to do this vanguard." 　　Examples: He is a national liberation of the ~, to the revolution of the territory. ★ "Lu Xun"