名词
中文翻译：Unknown
同义词：
['selective breeding', 'selective enhancement', 'selective breeding program']
例句：
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1. The government's eugenics policy aims to improve the genetic health of the population.
政府的优生政策旨在提高人口的遗传健康。
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2. The research on eugenics has led to the development of new treatments for genetic diseases.
优生学研究导致了对遗传疾病的新治疗方法的开发。
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3. Eugenics is often used in discussions about race and intelligence, but it raises ethical questions.
优生学在讨论种族和智力时经常被提及，但它引发了伦理问题。