First, the cultural research of the radical of Shuowen (shell research, women's department, Shuowen radical (remainder) studies the provincial sound of Shuowen, the agricultural culture in Shuowen, the polyphony of Shuowen, the female part of Shuowen Jiezi, the corpse part of Shuowen Jiezi, and Shuowen Jiezi The evolution of Chinese characters (cultural discussion in the evolution of Chinese characters, discussion on the reasons for the evolution of Chinese characters, etc.). A review of the origin of Chinese characters; Comments on the teaching methods of Chinese characters: comments on The Future of Chinese Characters; A summary of the analysis methods of Chinese characters: a review of the basic laws of the evolution of Chinese characters' forms: a study of cultural information of Chinese characters: a discussion on cognition and pictophonetic characters: a study of loanwords and loanwords; A Study on the Physical Structure of Oracle Bone Inscriptions Pictophonetic Characters and Variant Characters: A Textual Research on the Origin of Jiang Yong's Nvshu; A Study on the Characteristics of Liu Shu (on Liu Shu Culture, on the Law of the Development and Evolution of Chinese Characters, on the Relationship between the Sound and Meaning of Chinese Characters, on the Complexity and Division of the Evolution of Chinese Characters, on Variant Characters in Modern Chinese Characters, on the Understanding Characters in Modern Chinese Characters, on the Ideographic Characters in Modern Chinese Characters, The historical value of Shuo Wen Jie Zi, the causes of phonetic symbols expressing meaning, the rules and ways of meaning extension, the methods of exploring the original meaning under the pretext of understanding, the expression functions of various modern Chinese characters, the structural characteristics of modern Chinese characters, the origin of pictophonetic characters, phonetic symbols of pictophonetic characters and semantic symbols of pictophonetic characters. On the Similarities and Differences of Semantic Symbols in Xu Shen's Six Books; On the Recognition and Structural Features of Original Chinese Characters; A Study on the Pronouns and Vocabulary in The Analects of Confucius; A Study on Modal Words in Mencius; A Study on the Second Person Pronouns in Shi Shuo Xin Yu; A Study on Some Function Words in The Scholars. A study of reduplicated words in The Book of Songs: a study of the deep meaning basis of word polysemy and morpheme polysemy evolution; principles and methods of word meaning extension; An extended analysis of the meaning of Duan Yucai's Notes on Shuowen Jiezi: the classification of meaning transfer; Views on determining the synonymous relationship (or other relationships) of ancient Chinese words: the change of word meaning in ancient and modern times (phenomenon \ reason \ law) Synonyms and cognates A brief discussion on the study of synonymous compounds in pre-Qin period (Zuo Zhuan, Lun Heng, Mo Zi, etc. ) The arbitrariness of the relationship between sound and meaning and the motivation of disyllabic Chinese vocabulary. The use and development of the grammatical component "Shi" —— A study of the passive sentence "Lao Zi" in Han Feizi: A study of the syntax of The Analects of Confucius (a study of the judgment sentence and imperative sentence, the word "Qi" in Mencius, the word "Zhi" in Mencius and the fixed structure in Historical Records). Semantic evolution and flexible use of parts of speech of adverb "Bei" in pre-Qin period from the vernacular works of Han Feizi, Zhuangzi, Tang, Song, Yuan, Ming and Qing Dynasties: Research on the structure of "ba" in ancient Chinese: research on the structure of "zhe" in ancient Chinese: research on the processing of ancient Chinese; A summary of flexible use of parts of speech in ancient Chinese. Research on simple sentences (or complex sentences) in ancient Chinese, flexible use of ancient Chinese, prepositions (or conjunctions) in ancient Chinese, conjunctions in ancient Chinese, ellipsis in ancient Chinese, causative structure in ancient Chinese, double objects in ancient Chinese, postposition attributes in ancient Chinese and pronouns in modern Chinese. A Study on the Types of Double-object Sentences and the Internal Structure Hierarchy of "Ten Verbs" in Qin Dynasty —— A Syntactic Study of Tang Poetry: A Study on the Nature of Reference "Jian"; A Further Discussion on the Formation and Development of "Er" between Subject and Predicate: A Grammatical Study on the Origin of the Word "Zhi" between Subject and Predicate (IV). A Study of Phonology in A Special Book of Phonology; Tao Yuanming's Experience in Studying Phonology; On the Function of Phonology in Reading Ancient Books; Research on the Evolution of Chinese Phonetics and Ancient Phonetics; Research on the History of Chinese Phonetics; Research on the Standard of Modern Chinese Phonetics. Dialect research, dialect vocabulary research, dialect grammar research, dialect phonology research, special components of ancient Chinese preserved in dialects, 6. Research on exegetics, punctuation, annotation of classical Chinese in middle school textbooks, exegetical method of "proving meaning according to text", exegetical method of "seeking meaning according to sound", collation of exegetics and annotation of Chinese teaching in middle school, 7. A Rhetoric Study of the Diplomatic Rhetoric in Zuo Zhuan: A Rhetoric Study of Du Fu's Poems with Meaning as a Unit —— A Study of the Characters' Language Style in A Dream of Red Mansions: A Comparative Study of the Characters' Language Styles in Zuo Zhuan: A Comparative Study of the Rhetoric Styles in Ancient and Modern Times in Water Margin: A Study of Mencius' Debate Art: The Eighth Study of the Diplomatic Rhetoric of Warring States Policy. Other related research; Research on Classical Chinese Teaching in Middle School: Research on the Interpretation of Shuowen: In short, try to choose books and special people.