尼古丁(nicotine)、A colorless, poisonous alkaloid, C10H 14N 2, derived from the tobacco plant and used as an insecticide. It is the substance in tobacco to which smokers can become addicted. 尼古丁:无色有毒生物碱,C10H 14N 2,歼陪从烟草氏毕蠢中提取被用作杀虫剂,数凯它是烟草中致使吸烟者上瘾的物质
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