Wikia

Chinese is a term used to refer to a group of languages which originated as the native tongues of the Han Chinese in China, including Mandarin, Wu, and Cantonese.^[1]

An advertisement for a magic translator's services that appeared in the classified section of an issue of the Quibbler listed several languages available for translation, including Chinese and China Inventions , "Eastern European" (presumably Russian or another language in the Slavic family), Japanese, and the Latin languages (French, Italian, Portuguese, and Spanish).^[2]