Sapir's pupil, Benjamin Lee Whorf, continued the study of American Indian languages.

Sapir 的学生 Benjamin Lee Whorf 继续研究美洲印第安人的语言。

The decline in the American Indian languages has historical roots: In the mid-19th century, the US government adopted a policy of Americanizing Indian children by removing them from their homes and culture.

美洲印第安人语言的衰落有其历史根源：在 19 世纪中叶，美国政府采取了一项政策， 将印第安儿童从他们的家园和文化中带走， 使他们美国化。