The conclusion of the undergraduate thesis is 800- 1000 words. The conclusion is not only a summary of the research results after full discussion, but also an echo of the opening introduction, an answer to the questions raised in the introduction and a complete, accurate, concise and objective description. And the conclusion is not a simple repetition of the results, but a deeper understanding of the research results. Generally, it includes: what problems have been explained and solved in this study; What tests have been made on some problems in previous studies, and which ones have been revised, and new viewpoints have been drawn?