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A distinction is often made between " positive " and " negative " eugenics.
对 “ 积极 ” 优生学和 “ 消极 ” 优生学往往加以区分.
辞典例句
An example of negative eugenics would be the attempt to eradicate a harmful recessive gene.
消极优生学的范例是试图破坏一种对人体有害的隐性基因.
负优生学???
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