The series of textbooks of "Mastering Chinese (Refined Editon）" is a zero-start and comprehensive Chinese textbook according to the requirements of the "Chinese Proficiency Grading Standards for International Chinese Language Education". It is edited by Profess Lu Fubo Nankai University and published by the People's Education Press. At present, it has published 1-4 elementary volumes. The main features of this series are standardization, modernization and digitalization. Each paper textbook is equipped with "one lesson, one case" immersive whole-process teaching electronic courseware, embedded with necessary teaching modules such as texts, recordings, illustrations, exercises, activities, etc., to meet the needs of online and offline, domestic and foreign, long-term and short-term Chinese teaching in multiple forms and scenarios.