THE ROLE OF TONES IN MODERN MANDARIN CHINESE: PHONETIC AND COMMUNICATIVE FUNCTIONS. Modern American Journal of Linguistics, Education, and Pedagogy, [S. l.], v. 1, n. 7, p. 146–149, 2025. Disponível em: https://usajournals.org/index.php/6/article/view/1157. Acesso em: 18 oct. 2025.