World Language

https://www.islenska.is/en/

https://www.omniglot.com/french/frantastique.htm

https://www.omniglot.com/language/phrases/hungarian.php#phrases

https://www.britannica.com/topic/French-language

https://www.studying-in-germany.org/learn-german

https://www.bonjourdefrance.co.uk/

https://www.bbc.co.uk/radio4/history/inourtime/mp3.shtml

http://www.italianlanguageguide.com/

学习语言的难易程度因个人经验和语言学习背景而异。然而，一些语言被认为相对较难学，这主要取决于它们的语法结构、语音系统、词汇量等因素。

以下是一份一般认为较难学习的十种语言的排名，仅供参考

01.汉语（中文）

02.阿拉伯语

03.俄语

04.韩语

05.日语

06.芬兰语

07.挪威语

08.乌尔都语

09.匈牙利语

10.波兰语

https://www.bbc.co.uk/sounds

https://www.nhk.or.jp/radionews/

https://www.rfa.org/mandarin

http://wallstreet.com/#Features

https://www.nytimes.com/

https://www.latimes.com/

https://www.hollywood360radio.com/

https://twitter.com/

https://weathernews.jp/app/cm/

https://www.waltdisney.org/

https://player.melody.tv/melody-radio

https://www.collinsdictionary.com/