Do your best and die. Allusions: During the Three Kingdoms period, the incompetent A Dou (Liu Chan) succeeded to the throne after the death of Liu Bei, the master of Shu. He only knows pleasure, leaving all domestic military and political power to Zhuge Liang. Zhuge Liang joined forces with Wu to attack Wei, conquered Meng Huo in the south and actively prepared for two northern expeditions. On the eve of the last Northern Expedition, he wrote A Dou model to show that he did his best for his country and died. Complete the big me, Kong Rong, let the pear, the small one is hidden in the forest, and the big one is hidden in the city.