单词	cacogenesis
释义	cacogenesis noun caco·​gen·​e·​sis ˌkakəˈjenəsə̇s 1 : inability to produce hybrids that are both viable and fertile 2 : racial deterioration especially when due to the retention of inferior breeding stock Word History Etymology New Latin, from cac- + genesis First Known Use 1922, in the meaning defined at sense 2
随便看	burnished burnished gold burnished straw burnisher burnishers burnishes burnishing burnishing die burnishings Burnley burnoose burnoosed burnooses burnous burnouses burnout burnouts burnover burns Burns burns (up) burns away burns down burns in Burns meter

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