C3514
The empress raised an eyebrow. "Oh?" "Why don't you tell me about it!"
Yan Qingyi said, "Your Majesty, the people of Qinyang River have been there before. The reason for the flood of the river is because the river has been flowing for a long time and has accumulated a lot of sand, causing the level of the river to be higher than the surface. So I came up with a solution to the problem
