1.damsel in distress old useHELPa young woman who needs help or protection – used humorously 需要帮助[保护]的年轻女子〔幽默用法〕
Examples from the Corpus
damsel in distress• Deepinside she seemed to have been waiting like some long-ago damsel in distress, waiting for her knight to rescue her.• You know the sort of thing: the damsel in distress chained to the railway line as the expressthunders towards her.• The real Mario has no such problems with damsels in distress.
2.WOMANa young woman who is not married, especially a pretty young woman in an old story 〔尤指旧时故事中漂亮的〕未婚少女