不熟悉所研究的文化和种族群体的研究人员必须采取额外预防措施，以摆脱他们从自己的文化带来的任何偏见。
Researchers who are unfamiliar with the cultural and ethnic groups they are studying must take extra precautions to shed any biases they bring with them from their own culture.
文化已经成为了自然选择的一股力量，而它如果被证明是一股重要力量，那么随着人们适应他们自己的创造物带来的压力，人类进化可能会加快。
Culture has become a force of natural selection, and if it should prove to be a major one, then human evolution may be accelerating as people adapt to pressures of their own creation.
来自北欧不同地区的人定居在英格兰，带来了他们自己的文化和语言。
People from different parts of northern Europe settled in England, bringing their own culture and language with them.
来自北欧不同地区的人定居在英格兰，带来了他们自己的文化和语言。
People from different parts of northern Europe settled in England, bringing their own culture and language with them.
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