名词
中文翻译：公爵头衔
同义词：
['princedom', 'duchy', "regency例句：1. The duke was the head of his family's estate.（公爵是他家地产的负责人。）2. She has always dreamed of becoming a duchess one day.（她一直梦想有一天能成为公爵夫人。）"]
例句：
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1. The duke was the head of his family's estate.
公爵是他家地产的负责人。
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2. She has always dreamed of becoming a duchess one day.
她一直梦想有一天能成为公爵夫人。
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3.During the reign of the duke, the city prospered greatly.
在公爵统治期间，城市繁荣发展。