Story of the Three Kingdoms: Cao Cao chased Liu Bei in Changbanpo, and Zhao Yun went in seven times and out eight times to save the young master. Zhang Fei thought that Zhao Yun was upside down, and he was watching at Dangyang Bridge. Zhao Yun, the rescuer, fled here. Zhang Fei asked him to stop Cao Cao's 700 thousand pursuers and shouted, Who dares to fight me? After shouting three times, no one dared to go up, so that Cao Bing fled in defeat.