Count. The material comes from other people's works, even if it is only the explanation of knowledge points, it also constitutes infringement. If you use the video material that comes with the clip, if it is published on various platforms in ByteDance, it is not infringement. Using the cut video as a promotional video of grinding wheel is infringement. Clipping is a mobile video editing tool with comprehensive editing functions, variable speed, various filters and beauty effects, and rich music library resources.