1, government organs and administrative units: government documents, notices, announcements and regulations. It needs to be carefully written and expressed in official documents to ensure accurate and clear information to the public;
2. Enterprises and institutions: Enterprises and institutions need to accurately express the company's decision-making, internal rules and regulations, annual reports, plan reports and other information to meet the internal and external communication of the company;
3. Law firms: Law firms need to prepare contracts, legal documents and litigation documents in strict and standardized official languages. Ensure the authenticity and validity of legal cases;
4. News media: News media need to transmit news information quickly and accurately by writing official documents, press releases and other forms to ensure its news quality and accuracy;
5. Scientific research institutions: Scientific researchers need to use professional official documents to write research reports, books, academic papers, etc. In order to publicize scientific research achievements and obtain scientific research funds.