RSS 文档中 language 标签中的可选值
Afrikaans: af
Albanian: sq
Basque: eu
Belarusian: be
Bulgarian: bg
Catalan: ca
Chinese (Simplified): zh-cn
Chinese (Traditional): zh-tw
Croatian: hr
Czech: cs
Danish: da
Dutch: nl
Dutch (Belgium): nl-be
Dutch (Netherlands): nl-nl
English: en
English (Australia): en-au
English (Belize): en-bz
English (Canada): en-ca
English (Ireland): en-ie
English (Jamaica): en-jm
English (New Zealand): en-nz
English (Phillipines): en-ph
English (South Africa): en-za
English (Trinidad): en-tt
English (United Kingdom): en-gb
English (United States): en-us
English (Zimbabwe): en-zw
Estonian: et
Faeroese: fo
Finnish: fi
French: fr
French (Belgium): fr-be
French (Canada): fr-ca
French (France): fr-fr
French (Luxembourg): fr-lu
French (Monaco): fr-mc
French (Switzerland): fr-ch
Galician: gl
Gaelic: gd
German: de
German (Austria): de-at
German (Germany): de-de
German (Liechtenstein): de-li
German (Luxembourg): de-lu
German (Switzerland): de-ch
Greek: el
Hawaiian: haw
Hungarian: hu
Icelandic: is
Indonesian: in
Irish: ga
Italian: it
Italian (Italy): it-it
Italian (Switzerland): it-ch
Japanese: ja
Korean: ko
Macedonian: mk
Norwegian: no
Polish: pl
Portuguese: pt
Portuguese (Brazil): pt-br
Portuguese (Portugal): pt-pt
Romanian: ro
Romanian (Moldova): ro-mo
Romanian (Romania): ro-ro
Russian: ru
Russian (Moldova): ru-mo
Russian (Russia): ru-ru
Serbian: sr
Slovak: sk
Slovenian: sl
Spanish: es
Spanish (Argentina): es-ar
Spanish (Bolivia): es-bo
Spanish (Chile): es-cl
Spanish (Colombia): es-co
Spanish (Costa Rica): es-cr
Spanish (Dominican Republic): es-do
Spanish (Ecuador): es-ec
Spanish (El Salvador): es-sv
Spanish (Guatemala): es-gt
Spanish (Honduras): es-hn
Spanish (Mexico): es-mx
Spanish (Nicaragua): es-ni
Spanish (Panama): es-pa
Spanish (Paraguay): es-py
Spanish (Peru): es-pe
Spanish (Puerto Rico): es-pr
Spanish (Spain): es-es
Spanish (Uruguay): es-uy
Spanish (Venezuela)es-ve
Swedish: sv
Swedish (Finland): sv-fi
Swedish (Sweden): sv-se
Turkish: tr
Ukranian: uk
