[GranularRecipe]

It's not a language. It's a writing system used to write Classical Chinese for 3000 years and Mandarin for 150 years. When I was in Hong Kong, I was surprised that the written language is Mandarin (in traditional form).

[DeathArrow]

It's a language in the same sense math notation is a language. It's understood by both a Chinese and an American mathematician.

[GranularRecipe]

Math notation consists of symbols and syntax (order of symbols). How to arrange the Chinese characters (syntax) is very different between different languages.