Please fill in the detailed address when sending a letter or parcel: Room XXX, Building XX, Yantai University North Campus, Laishan, Yantai City, will be delivered to your dormitory. If you send it by express, the address will be very detailed, and you can only send it to Sancan Hospital to get it yourself! Mobile phone number must be available! The postal code and address of the netizen above are also right. Address suitable for ID card and household registration. It is ok to send a letter, but it is more troublesome!