Does the subject want to ask, "Why is the catering service in commercial areas and residential areas usually cheaper than that in railway stations and airports?" Special geographical location, high rent and decoration costs. High-speed railway station railway station and airport are mostly built in the suburbs, and there are no business districts around them. Because of this special geographical location, the rent and decoration costs will be higher than those of ordinary restaurants, and the pressure of operating costs will be passed on to consumers through the high pricing of products, and the price will be higher, while the catering services in commercial areas and residential areas will be cheaper.