南部非洲的科伊桑人就是一个例子。
他们语言中那种独特的短促而清脆的声音使得一些研究者认为科伊桑人是最原始的人类祖先的直系后裔。
The unique character of the clicking sounds in their language has persuaded some researchers that the Khoisan people are directly descended from the most primitive human ancestors.
他们语言中那种独特的短促而清脆的声音使得一些研究者认为科伊桑人是最原始的人类祖先的直系后裔。
The unique character of the clicking sounds in their language has persuaded some researchers that the Khoisan people are directly descended from the most primitive human ancestors.
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