noun🔗Share公国, 大公国 A dominion or region ruled by a duke or duchess. (A grand duchy may be a self-governing state. A simple duchy tends to be a part of a larger kingdom or empire.)"The duke's family lived in the castle at the center of their duchy, overseeing the farms and villages within its borders. "公爵一家住在他们公国中心的城堡里，管理着公国境内的农场和村庄。politicsgovernmentroyalhistorystatenationplaceChat with AIVocabulary GamePractice Reading
