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(上层社会)首次进入社交界的年轻女子
A debutante is a young woman from the upper classes who has started going to social events with other young people.
例句
She dazzled London society as the most beautiful debutante of her generation.
她首次出现在伦敦社交界便艳惊四座,被视为同龄人里最美丽的年轻女子。