以下为句子列表：
英文: Although poisonous, many alkaloids are valuable as medicines, and some can suppress coughing.
中文: 很多碱性物质虽然有毒，但有入药价值，一些可以压制咳嗽。
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英文: Antiviral natural compounds such as proteins, alkaloids and antibiotics produced by plants, animals and microbes were reviewed, and their applications to controlling plant virus diseases were also prospected.
中文: 摘要结合抗人或动物病毒剂，综述了国内外植物、动物、微生物源的抗植物病毒蛋白、生物碱及抗生素等天然化合物，并对其在防治植物病毒病上的应用进行了展望。
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英文: The results showed that the n-butanol and chloroform fractions had a stronger inhibitory activity to fungal growth and the n-butanol fraction had a stronger inhibitory activity to the bacteria, so that it was surmised that alkaloids in Sophora alopecuroid
中文: 结果表明，正丁醇萃取部分和氯仿萃取部分对真菌生长有较强的抑制活性，正丁醇萃取部分对细菌亦有较强的抑制活性，推测苦豆子中的生物碱是主要的抗真菌成分，存在于正丁醇萃取部分的黄酮和三萜类配糖体等成分同时具有抗真菌和抗细菌活性。
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英文: This paper reviewed the production, research and application of Sophora flavescens Ait. alkaloids as insecticides and fungicides in china in the recent years, and pointed out the problems and prospect of the application of sophora flavescens Ait. alkaloid
中文: 摘要本文综述了近年来苦参碱农药作为杀虫剂及杀菌剂在我国的生产、研究与应用概况，并讨论了目前苦参碱农药应用中存在的问题及发展前景。
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英文: This review has described the pharmacological activitie4s of norditerpenoid alkaloids mainly including analgesia, anti-inflammatory and antiarrhythmic action with was published since 1984.
中文: 摘要归纳总结了1984年以来所发表的有关去甲二萜生物堿的药理作用。
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