The dog meat in Zhumen stinks, and people freeze to death on the road. It comes from Du Fu's "From Beijing to Fengxian, reciting 500 words" in the Tang Dynasty, which means that rich people eat too much wine and meat and stink, but poor people freeze to death and starve to death in the streets.
The classic poem "From Beijing to Fengxian, 500 words" is to treat mink fur, which is sad and clear. Advise customers to camel's hoof soup, and frost orange presses fragrant orange. The wine and meat in Zhumen stink, and the road has frozen bones. Prosperity and decline are very different, melancholy and indescribable.