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The whole population is so inbred that no genetic differences remain.
该族群整个都是同系繁殖，以致于根本不再有任何的基因差异。
《柯林斯英汉双解大词典》
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Differences between rich and poor countries are no longer so clear.
富裕国家和贫穷国家之间的差别不再那么明确。
youdao
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Differences between rich and poor countries are no longer so clear.
富裕国家和贫穷国家之间的差别不再那么明确。
youdao