A: Fair use means that under certain conditions, the law allows others to freely use copyrighted works without obtaining the consent of the copyright owner or paying remuneration to the copyright owner, which is called fair use in the field of copyright law. According to the provisions of China's copyright law, fair use must meet the following conditions: the works used must have been published; The purpose of using the work must be non-commercial purpose; Fair use shall not infringe upon other legal rights other than the property rights of the copyright owner's works; Reasonable use also needs to respect the personal rights of the copyright owner of the used work, and the use of the work should indicate the author's name, the name of the work and the source of the work.

The fair use cases stipulated in China's copyright law mainly include: ① for personal study, research or appreciation of the use of published works by others; (2) appropriately quoting published works of others in works for the purpose of introducing and commenting on works or explaining problems; (3) inevitably reprinting or quoting published works in newspapers, periodicals, radio stations, television stations and other media in order to report current news; (4) Newspapers, periodicals, radio stations, television stations and other media publish or broadcast current affairs articles on political, economic and religious issues that have been published by other newspapers, periodicals, radio stations, television stations and other media, unless the author declares that they are not allowed to publish or broadcast; ⑤ Newspapers, periodicals, radio stations, television stations and other media publish or broadcast speeches delivered at public meetings, unless the author declares that they are not allowed to publish or broadcast; 6. Translate or copy a few published works for classroom teaching or scientific research in schools for use by teaching or scientific researchers, but they shall not be published publicly; ⑦ State organs use published works within a reasonable range for performing official duties; (8) Libraries, archives, memorial halls, museums, art galleries, etc. Reproduce the works collected by the library for the purpose of displaying or saving the version; (9) Performing published works for free, without charging fees to the public or paying remuneration to the performers; Copying, painting, photographing and video recording works of art set up or displayed in outdoor public places; (1 1) Translate published works written in Chinese by China citizens, legal persons or other organizations into works written in minority languages and publish them in China; (12) Change the published works into Braille. The above provisions apply to restrictions on the rights of publishers, performers, producers of audio and video recordings, radio stations and television stations.