The US has already lost more than a third of the native languages that existed before European colonization, and the remaining 192 are classed by UNESCO as ranging between "unsafe" and "extinct".

在欧洲殖民统治之前，美国就已经失去了超过三分之一的本土语言，剩下的192种被联合国教科文组织列为“不安全”至“灭绝”区间。