Dr Hao-Zhang Xiao, professor（2nd Class Post） and PhD supervisor at South China Agricultural University; He studies at Nanyang Technological University (1995-96) and was a visiting scholarat the University of Sydney (including postdoctoral research, 2012-13) and Hawaii University (2019-20). His research interests include second language studies,ecolinguistics, UBL, interlanguage pragmatics, interaction, and context studies. He has completed 17 provincial and national research projects and published widely in SSCI/CSSCI-indexed journals such as Language Teaching Research, International Journal of Multilingualism, Pragmatics, Language Sciences, Foreign Language Teaching and Research, Modern Foreign Languages, and others. His publications also include four books. In those publications, he proposedsuch theoretical frameworks or concepts and approaches as ‘Ecointeractive Context Model’, ‘Ecolinguistic Continuum’, ‘the Multi-dimensional Alignment Continuum Model’,‘the Multi-dimensional Alignment Sustainability Model’(MASM),‘Role-based Interaction Analysis for FLL’(RBIA-for-FLL), ‘Sound-Meaning Mapping Prioritizing Hypothesis’, and others. In social service, he serves as the evaluation expert of National and Provincial Philosophy and Social Science Projects, Humanities and Social Science Fund Projects of the Ministry of Education, Humanities and Social Science Base of the Ministry of Education, and the like. In addition, he has reviewed for many journals including Q1 or renowned journals such as Language Teaching Research, Journal of Pragmatics, etc. He is a founding member of the National Society of Ecolinguistics and the first PhD program in ecolinguistics in China. Due to his commitment and contribution, he has been awarded the Excellent Teacher in Southern Guangdong, two Provincial Outstanding Teaching Achievement (2nd class) Prizes, the Provincial Middle-aged Key Teacher, and the Provincial Outstanding Class Teacher.