汉藏语系, or the Sino-Tibetan language family, is a major language family that includes languages spoken in China and parts of Southeast Asia. It is primarily divided into two branches: Sinitic, which encompasses the Chinese languages like Mandarin and Cantonese, and Tibeto-Burman, which includes languages such as Tibetan and Burmese. This language family is one of the largest in the world, with over a billion speakers. The languages within the 汉藏语系 share certain linguistic features, such as tonal systems and specific grammatical structures, making them distinct from other language families like Indo-European.