In the duplicate check report of Geda's paper, the blue font represents the quoted fragments. If it is not a large-scale quotation, if there are only one or two sentences, it usually does not need to be revised.

However, in order to ensure the quality and originality of the paper, it is suggested that the quoted part should be modified and adjusted appropriately to avoid being misjudged as plagiarism. PaperFree perfectly realizes the whole process of "no paper detection-online real-time marking-comprehensive paper detection again-successful paper detection" for users.

Different duplicate checking systems have different algorithms and databases, so the duplicate checking results will be different. For the first draft of the paper, it is suggested that the paper series free duplicate checking software such as paperfree, papertime and paperday can be used for testing, and for the final draft, the duplicate checking system required by the school can be used for testing. Ensure the accuracy and effectiveness of duplicate checking.