| 单词 | 劣生 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔dismay〕Aid workers were said to have been filled with dismay by the appalling conditions that the refugees were living in.据说援助人员看到难民所处的恶劣生活条件时都感到非常难过。剑桥高阶〔dysgenics〕The biological study of the factors producing degeneration in offspring, especially of a particular race or species.劣生学：以种族退化为研究对象的一门生物学学科，尤指一定的种族或种属美国传统〔dysgenic〕Relating to or causing the deterioration of hereditary qualities in offspring.劣生的：有关或引起后代种族质量退化的美国传统 |
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