A bowl is worth several dollars. The delicacy of old Beijing is fish soup. According to the legend of Wulin, there was a woman named Song Wusao who sold fish soup. Emperor Gaozong ordered her to board the boat and ate her fish soup, which was highly appreciated. She remembered her old age and gave her famous dishes. "A bowl of fish soup is worth a few dollars. When people believe in it, they will compete for the market, they will buy your kindness and buy fresh food. "