grand duchess

例句：

1. 1.The grand duchess is a respected member of society.
   公爵夫人是社会尊敬的成员。
2. 2.She was the grand duchess of the kingdom.
   她是王国的公爵夫人。
3. 3.The grand duchess's dress was stunningly beautiful.
   公爵夫人的裙子非常漂亮。