rarities
If someone or something is a rarity, they are interesting or valuable because they are so unusual.
Sontag has always been that rarity, a glamorous intellectual.
桑塔格一直都是那种与众不同、极有魅力的知识分子。
The rarity of something is the fact that it is very uncommon.
It was a real prize due to its rarity and good condition.
它是一件真正的稀世珍品,因为它不但稀有而且保存完好。