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变色宝石; 翠绿宝石; 紫翠玉 | |||
变石 | |||
金绿宝石 | |||
紫翠玉色; 紫翠玉色白天呈暗绿色,在红光线下呈红紫色; 变色宝石 | |||
English thesaurus | |||
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Named after Czar Alexander II, very desirable, green in daylight, red in artificial light. |
alexandrite : 6 phrases in 3 subjects |
Ecology | 1 |
Shipbuilding | 1 |
Technology | 4 |