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	penwrite Penza Penzance penzhina Penzhinskaya Penzias peon peonage peonages peones peonidin peonies peonin peonism peonisms peonize peons peony peony dahlia peony red peony-flowered peony-flowered dahlia peony-flowering people people carrier

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。