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her·o·in AHD[hĕrʹō-ĭn] D.J.[ˈherəʊɪn]K.K.[ˈhɛroɪn]n.（名词）- A white, odorless, bitter crystalline compound, C17H 17NO(C 2H 3O 2) 2, that is derived from morphine and is a highly addictive narcotic. Also called diacetylmorphine 海洛因：一种白色、无气味、味苦的结晶状化合物，C17H 17NO(C 2H 3O 2) 2，从吗啡中提取，是一种极易上瘾的麻醉剂 也作 diacetylmorphine
- German [originally a trademark] 德语 [起源于一商标]
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