Run business and rent to earn income. Wuquan Old Street in Lanzhou is one of the famous historical and cultural blocks in Lanzhou, where there are many snacks, handicrafts and souvenirs with strong local characteristics. If you buy a pavement here, you can consider running a business and renting it to earn income. Commerce, as a kind of commercial real estate, the pavement can be used by operators to carry out commercial activities, such as opening restaurants, small shops and stalls. Rent to earn income, as a self-occupied property decoration, transformation or rental to earn income, in the premise of enjoying the use value of the property itself, to achieve a certain degree of financial appreciation.