The noun 公爵 (gōngjué) means "duke" and refers to a high-ranking title of European nobility. It is used in Chinese to translate Western aristocratic titles. For example, 英国公爵 means "a British duke."
那位公爵住在一座古老的城堡里。
Nà wèi gōngjué zhù zài yí zuò gǔlǎo de chéngbǎo lǐ.
That duke lives in an ancient castle.
他在书里读到了一个英国公爵的故事。
Tā zài shū lǐ dú dào le yí ge Yīngguó gōngjué de gùshi.
He read a story about a British duke in a book.
公爵的后代现在还住在那座庄园。
Gōngjué de hòudài xiànzài hái zhù zài nà zuò zhuāngyuán.
The duke's descendants still live in that manor today.
那位公爵住在一座古老的城堡里。
nà wèi gōngjué zhù zài yī zuò gǔlǎo de chéngbǎo lǐ.
That duke lives in an ancient castle.
他在书里读到了一个英国公爵的故事。
tā zài shū lǐ dú dào le yī gè Yīngguó gōngjué de gùshi.
He read a story about a British duke in a book.
公爵的后代现在还住在那座庄园。
gōngjué de hòudài xiànzài hái zhù zài nà zuò zhuāngyuán.
The duke's descendants still live on that estate today.