Based on my academic background, I am deeply passionate about "contact linguistics" and dedicated to exploring language dynamics in multilingual contexts. My primary research focuses on "Dai Lue (Tai Lue)", a language spoken by the Dai ethnic group in Xishuangbanna, China, and I approach it from the perspective of language contact and variation. My studies also extend to "Thai and Lao", with particular attention to comparative and sociolinguistic aspects across these closely related Tai-Kadai languages. Additionally, I am engaged in research on "cross-border ethnic languages", examining how political and cultural boundaries influence language use, identity, and preservation among communities spanning China and neighboring countries such as Laos, Thailand, and Myanmar.