Words that appear in audio and video. According to the query of Tik Tok APP, Tik Tok's copy is the text appearing on the vibrato video, which is between 15 and 20 words, occupying the position of 1 2 lines, with a maximum of 55 words. Vibrato video and copywriting are the direct presentation of creative content, and copywriting is the crowning touch of video, so it is also very important to write short video copywriting.