1. A food desert refers to a place where there is nothing to eat, which means there is less delicious food. For food lovers, this place is like a desert, which makes them feel good. There was nothing to eat, nothing worth eating.

2. For example, in Beijing, a joke once circulated on the Internet. If you search for delicious food in Beijing, the navigation will directly point you to the plane, and you will be able to find delicious food when you fly to Guangdong in 3 hours. Under this paragraph, many Beijingers echoed, saying that there is really nothing delicious in Beijing, and those Beijing snacks often leave people with a "four different" impression.

3. Peking duck, stir-fried liver, noodle tea, enema, stewed? Guo Degang has a joke: Get up early to eat stewed, braised dumplings at noon, and fried enema in the evening. This day is delicious enough. It’s talking about the strong taste of Beijing snacks. Coupled with the "notorious reputation" of bean juice, people have great doubts about Beijing's food.