The problems of the literature review to be improved are as follows:
1. lack of process of synthesis, comparison and analysis, based only on textual description of the literature without highlighting critical thinking;
2. inappropriate selection of materials, too much attention to irrelevant literature, lack of typicality, resulting in the overall meaninglessness of the review;
3. Failure to reveal the research gap, resulting in a lack of convincing need for follow-up research;
4. the logic of the review is unclear, the hierarchy is not clear, and the structure is confusing, like an essay or dissertation, making it difficult to accurately convey the depth and breadth of the topic to be explored.
