How to label letters to college students? I want to send something to a friend of mine, but I don't know how to write it. I probably know, but study.

The courier brother will let you leave the other person's mobile phone number on the courier list. After the courier arrives at the destination, the courier brother will send a text message to your friend. The content is probably that your courier has arrived in * * * *, and the courier number is * * * * *, so you can pick up the courier at * *.

Our school is like this.