a precious stone, typically a single crystal or piece of a hard lustrous or translucent mineral cut into shape with flat facets or smoothed and polished for use as an ornament
宝石。
(一般作
宝石饰物;首饰。
a hard precious stone used as a bearing in a watch, compass, or other device
(钟表、指南针等仪器用)宝石轴承,钻。
a very pleasing or valued person or thing; a very fine example
令人喜爱的人(或物);令人尊重的人(或物);典范,模范
-
she was a jewel of a nurse .她是一个极好的护士。
"Middle English: from Old French