Any of several West African languages belong to the South Central Niger including Yoruba. 西非语言的任何一种都属于中南尼日尔语系，包括约鲁巴语。
In tone languages, such as Mandarin in China or Yoruba in West Africa, the pitch of a spoken word affects its meaning. 像在中国所说的北京话或在西非所说的约鲁巴语，属于声调语言，说话者的声调会影响字意。
