Japanese Cantonese Mandarin Minnan is the language or dialect most commonly used today on radio stations in hong kong and Taiwan.
Mandarin is a group of Chinese ("Chinese") languages and dialects natively spoken in most of northern and southwestern China. This group includes the Beijing dialect, which is the basis of the phonology of Mandarin Chinese, the official language of China.
This group is sometimes called Northern Chinese because Mandarin originated in northern China and most Mandarin dialects are found in the north. Many varieties of Mandarin, such as Southwestern (including Sichuan) and the Yangtze, are (or only partially) intelligible in Mandarin. Nevertheless, Mandarin as a group often ranks first on lists of languages in terms of the number of native speakers (nearly one billion).
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