Paper is still the "appearance" of ordinary documents. Modification is to record all the modifications you have made in the document. You can choose whether to accept the changes at any time by right-clicking, which is very convenient for drafting and modifying documents.

Modify what the teacher thinks is inappropriate. The original text before the revision is still there. Write down the revised contents in the prompt box, so that a document can be viewed by many people, and the teacher's revision and your original text can also be taken back for reference.