It provides habitats for more primitive tribes. 原始部落
The East African language of Kiswahili was chosen as the official language of Kwanzaa because it is a non-tribal language spoken by a large portion of the African population.
Part of the issue is that tribal groups themselves don't always believe their languages are endangered until they're down to the last handful of speakers. 部落群体
We were only expecting Jack and his wife, but the whole tribe turned up. 我们以为只是杰克和他的妻子会来，但结果他们一大家子都来了。
He had a sudden outburst against the whole tribe of actors. 他突然对所有的演员非常反感。