emerald
/ˈemərəld; `ɛmərəld/ n
bright green precious stone 祖母绿; 纯绿柱石; 绿宝石; 翡翠
two diamonds and an emerald 两枚钻石和一枚绿宝石
[attrib 作定语]
an emerald ring 翡翠戒指. emerald, adj, n [U] (also emerald green) (of a) bright green colour 绿宝石色（的）; 翡翠绿（色）
an emerald hat 翠绿色的帽子.