Whether manuscript washing is plagiarism or not, I think it depends on the different scores, and some standards are still needed to define it. For example, some people actually read a good article and then refer to something on the basis of this article, but his views are brand-new, so I think this is a very high level and cannot be counted as plagiarism. After all, all writers are familiar with quotations and techniques, unless a writer's characteristics are very distinctive.
However, if there is a high degree of similarity between the writing ideas and the ideological core of the article, then it should be classified as plagiarism. Unless it is some very common routines, such as the common writing methods of argumentative essays, the total score is short. Every writer's way of thinking should be different and even unlikely to overlap.
I think the problem of manuscript washing still needs to be defined, otherwise there may be many articles in one mind. In addition, manuscript washing affects not only academic articles, but also novels, thus giving birth to a seemingly brand-new novel.
Generally speaking, an article or novel values the spiritual core. As long as you don't copy the spiritual core, the possibility of plagiarism is much smaller. As for the similarity between words and sentences, I think it is really impossible to construct the fact of plagiarism.