联合国网站:http://portal.unesco.org
中有一句话:
The same situation can be observed concerning the Chinese languages, which have a unified writing system but are different spoken languages, such as Mandarin, Hokkien, Cantonese and Hakka.
普通话的英文名 Mandarin(音译为满大人,原意为满族人推广的官方语言)
闽南语的英文名 Hokkien
粤语的英文名 Cantone
客家话的英文名 Hakka
为联合国认定的中国四大