First, we can use the method of "synonym transformation". It is enough to replace the repeated words in the sentence with synonyms or synonyms, but when using this method, you must not blindly replace them. Pay attention to the logical rationality of sentences, so as to take the overall situation into account and make the hierarchical structure of context correct. If the duplicate checking rate is too high, this method is not effective and is not recommended.

Secondly, we can use the method of "reporting sentences" to express the sentences with high repetition rate in a different way and change the sentence expression and paragraph structure, but the premise is that the semantics are consistent, otherwise the papers may be inconsistent, and it is not recommended to make big changes, because it may involve a wide range of changes.

Then, you can use the deletion method, which is the most convenient if the duplicate checking rate of the paper is high. But we must pay attention to the rationality of context level and logic, otherwise it may lead to a wide range of changes in the paper.

Finally, you can use less text content and more pictures, charts and so on. Personally, I think the best way to reduce the weight of a paper is to report a single sentence, which has the best effect.