Confirm the necessity of revision: Before revision, confirm whether it is necessary to revise the secondary title. If the problem is not serious, or does not affect the overall structure and logic of the paper, you can consider keeping it as it is.
Follow the specifications of the paper: when revising, follow the specifications and format requirements of the paper. Generally speaking, the second-level title of a paper should be concise and clear, which can clearly express the contents of its paragraphs or chapters.
Consistency: If the subtitle needs to be modified, ensure that the modified title is consistent with the context. In particular, we should pay attention to the echo relationship with the first-level title and the third-level title to avoid contradictions or duplication.
Avoid large-scale revision: Try not to make large-scale revision to the secondary title. If you need to add or delete content, try to keep the original paragraph structure and logical relationship.
Check and verify in time: check and verify in time after modification to ensure that the modified content will not cause other problems. If the duplicate checking rate is too high, it needs further adjustment and modification.