If we must reduce the length of the paper by 80%, we can only start with the structure. Most papers with more than 10,000 words have three or four layers of structure. For example, the theme of the argument is divided into several aspects, and each aspect is divided into several sides, and then different sides are discussed. On the premise of extreme compression, compress the structure as much as possible, lower the level of the structure, and get rid of secondary arguments. In this way, the volume of the article will become smaller. On the basis of reducing the volume, the length can be greatly reduced by refining the characters.