Wherever they settled, the Indo-Europeans appear to have overcome the existing population and imposed their language upon them.

无论印欧人在何处定居，他们似乎都胜过了当地人，对他们强制推行了自己的语言。

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The earliest known of these British Indo-Europeans split into two groups called the Scots and the Celts.

英国最早的印欧人分为两族：苏格兰人和凯尔特人。

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Advocates of this theory argue that both groups were the original inhabitants of Europe before migratory waves of Indo-Europeans came from the east.

BBC: The hard work begins