Jin Lixin, professor in College of International Education, Shanghai International Studies University, has published more than 70 papers on linguistics, modern Chinese grammar, language teaching in academic publications at home and abroad; and more than 70 papers on popular linguistics in the mass publications. His research centers on linguistic theories, modern Chinese grammar and teaching Chinese as a second language. He has undertaken two projects of the Office of Chinese Language Council International on Chinese research and textbook development, and has paid academic visits to Korea and Japan for many times. Meng Zhuyi is a professor in Hankuk University of Foreign Studies, president of Korean Chinese Education Association, and vice president of the International Society for Chinese Language Teaching.