The human population contains a great variety of genetic variation, but drugs are tested on just a few thousand people.

人类群体中有各种各样的基因变异，但是药物只在几千人身上进行测试。

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Perhaps a few thousand people, mostly academics, used the service.

估计有几千人使用过这项服务，其中大部分是研究人员。

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The question is, do you have a few thousand people who can afford luxury?

问题是你是否拥有一千个可以承受奢侈品的人？

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If every drug is only going to work in a few thousand people, what then?

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Chernobyl's death toll is highly uncertain, but may have reached a few thousand people.

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It does not get enough rain to support a few thousand people let alone several million.

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