2. For all kinds of conclusions, viewpoints, analysis and argumentation in the paper, it is necessary to consult the literature, collate data and collect empirical evidence in order to discuss them more comprehensively and concretely.
3. Carefully check and modify the language expression, discussion logic, coherent structure and data citation in the paper. In order to increase the amount of literature reading, the relevant references and cited materials of the paper can be appropriately expanded.