He is both Northern Arapaho and Seneca.

他既是北阿拉帕霍人又是塞内卡人。

One of them is Arapaho, a Native American language.

其中之一是阿拉帕霍语，一种美洲原住民语言。

William C'Hair of the Northern Arapaho Language and Culture Commission still speaks it.

北阿拉帕霍语言和文化委员会的 William C'Hair 仍在使用它。

They mobilized their Cheyenne and Arapaho allies and almost all the other Sioux nations against the US. In 1876, exactly 100 years after the Lakotas' arrival, gold prospectors occupied the sacred Black Hills.

他们动员了他们的夏延和阿拉帕霍盟友以及几乎所有其他苏族国家反对美国。 1876 年，也就是拉科塔人到来整整 100 年后，淘金者占领了神圣的布莱克山。