Hello. Writing letters is still very important. I hope this letter will be helpful.
(empties two boxes) Here.
(box at the top left) Salute!
Friend: XXX (upper right box)
Year, month and day (upper right box)
The envelope reads:
123456 (opposite the postal code) (written in the box in the envelope)
(Upper left box) A unit in a province and a city (detailed address of the other party)
A collection of so-and-so (centered, written in larger words)
A unit in a province (detailed address of my unit) (box at the top right)
567890 (own zip code) (box in the upper right corner, if there is a box on the envelope, write it in the box)
This is the simplest example of Chinese letters. Before sending, you should carefully check the addresses and postal codes of both parties (the above figures are just examples, how much should be checked according to the actual address) and the name of the other party. Be careful to use the standard envelope of the post office instead of making it yourself.