More reliable, after all, the content side has its own content, and it is impossible to cooperate with the National Library without some real materials. It is helpful for role-playing to train and understand the skills of direct performance without teaching Mandarin. I have been to the live broadcast room several times, and I really have a strong ability of text analysis, and the on-site adjustment also has an effect. The audio of my students' Chinese books are all in the video number, so there is indeed a gap after listening. In addition, training this thing depends on your own understanding. Last time in the studio, an anchor with an accent was directly dismissed by the teacher.