Generally speaking, words marked in black do not need to be modified. If it is suspected that black words are duplicated, it can also be modified to ensure that the total repetition rate can be effectively reduced.
3. no need. When the paper is repeated, red indicates 50%- 100% repetition and needs to be revised; Orange represents 40%-50%, and it needs to be revised if it is repeated; Yellow represents 0%-40%, and it needs to be modified if it is repeated; Green indicates that there is no duplication and no modification is needed.