Send it directly to the person you want to give it to, write down his seat number and type what you want to say. If you are really not sure, you can send it to an acquaintance, and others will display your micro signal and WeChat avatar when they receive it.

A library is an institution that collects, sorts out and collects books and materials for people to read and refer to. As early as 3000 BC, libraries appeared. It has the functions of preserving human cultural heritage, developing information resources and participating in social education. Another function is to collect resources that people are unwilling to buy (or unable to buy) and provide them as collections for the public to use or consult. It can be run by public organizations, government agencies or private organizations. Library is the external storage and selective transmission mechanism of social memory (usually expressed in written records). In other words, the library is the memory device and diffusion device of social knowledge, information and culture.