First of all, I sympathize with your experience. I used to write papers on the computer when I graduated, but the system crashed. You know, my tutor didn't save it there either. I rewrote it only a week before the defense, and the same thing happened. In fact, it is not so difficult to reduce the repetition rate through software monitoring, but it is very important for you to grasp the whole article and adjust the structure as a whole. On the whole, changing the problem will solve a large part. Secondly, you should change sentences, specifically, change long sentences into short sentences. The original text is a long sentence, which can be said in several short sentences and reversed. To put it another way, for example, the original text said "the cooperation between XXX and OOO has been strengthened", and you changed it to "the cooperation between XXX and OOO has been strengthened", so you did it anyway; Change words and find synonyms to replace the original words. After several revisions, it's almost the same. After modification, take it to test to see the repetition rate. It is not enough to continue this revision until you are satisfied. Our initial requirement was less than 15%. I don't know how much you want. Take some time to do it seriously, it won't take long. Finally, I wish you success!