rare treasure meaning in English

奇珍
稀世之宝
玮玉

Everyone wanted a sample booklet or flyer . even the young children eagerly took master s booklets and held onto them as though they knew full well that they had been given a rare treasure
每位病患都来拿了样书或传单，即使是儿童们也都急切地索取师父的样书，捧在手里，似乎清楚知道他们得到了稀世珍宝。
His immortal poems have been spread all over the world , just like yangtze and yellow river are cleaning the souls of chinese people ; he has been a rare treasure in the library field of the world
他那永世不朽被世界人民交相传唱的诗篇，尤如长江黄河荡涤着炎黄子孙的灵魂，成为世界文化宝库中熠熠生辉的瑰宝。