1. Used to publicize the line, principles and policies of the Party and the government.
2. Used to publicize the regulations and prohibitions of an organ or organization.
3. Used to publicize social public morality.
4. It is used to celebrate a certain festival, a certain meeting, a certain celebrity, a certain anniversary.
5. It is used to commend advanced and model units and people.
6. Used to welcome or send off an organization, group or individual.
7. Advertising slogans, slogans, etc.