a language that a child learns at home from their parents that is not the main language of the country they are living in Within two or three generations most immigrants have lost or almost lost their heritage language. 在两到三代之内，大多数移民已经丧失或几乎丧失了其传统语言。 The fastest growing heritage language population in the United States is Hispanic Americans. 在美国，增长最快的传统语言人群是西班牙裔美国人。