One day, the dragon will get water and turn the Yangtze River back. "The source comes from The Romance of the Three Kingdoms. The original excerpt is as follows:
The dragon was played by shrimp on the beach, and the tiger fell to Pingyang and was bullied by dogs. Tigers lie in the mountains and listen to the wind, while dragons lie in the shallows and other tides. At the end of the sea, the sky is the shore, the mountain is the top and I am the peak. If Dongshan can make a comeback, Dapeng will spread its wings and hate the sky. There is no tiger falling in Pingyang, and the wind rises again. One day, the dragon will get water and turn the Yangtze River back.