Stewing is a cooking method. Usually, the ingredients are cooked in oil or sauce first, and then other seasonings and ingredients are added for stewing to make the ingredients more tasty. Stew is characterized by soft taste, rich soup and original ingredients. Stir-frying is to cut the ingredients into small pieces and stir-fry them quickly at high temperature, so that the ingredients are tender outside and tender inside, and the ingredients are fresh and nutritious. Stir-frying is characterized by fresh and fragrant taste, bright color, ripe ingredients but still maintaining a certain crispness.