You need to ask his address to confirm which campus he belongs to.
In the university, there is a special mailroom where you can write the class name or apartment number and name.
This is a reference example of the writing format of postcards exchanged in China.
If there is no grid in the figure, it can be filled as shown in the above figure.
China Post charges the postcard fee according to the number of pieces:
Domestic interoperability: 0.8 yuan/Zhang; To Hong Kong, Macao and Taiwan: 1 or 1.5/ piece, outward and international: 3 or 4 or 4.5 yuan/piece.
For more information about postage, please go to China Post official website:/index.do..
For more postal services, please visit the post office.