South entrance of Peking University Hospital. Vehicles without reservation are not allowed to enter from this entrance all day. They can only queue up from the auxiliary road of Xinzhou Road in the west gate of Peking University Hospital, and reserved vehicles can enter from the south gate of Peking University Hospital. The word "hospital" comes from Latin, meaning "guest", because it was originally set up for people to take refuge, and it also has a lounge to make people comfortable and entertaining. Later, it gradually became a professional institution to meet human medical needs and provide medical services, and it was a service place to accommodate and treat patients.