以下为句子列表：
英文: Beta-carotene is a known antioxidant that helps protect cells from harmful free radicals.
中文: 乙种胡萝卜素是一种抗氧化剂，可减少游离基对细胞的破坏。
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英文: Biotechnologists have developed genetically modified rice that is fortified with beta-carotene -- which the body converts into vitamin A -- and additional iron, and they are working on other kinds of nutritionally improved crops.
中文: 生物技术专家已经培育出了含有β—胡萝卜素(身体可将之转化为维生素A)和更多铁元素的转基因水稻，目前正在研究培育其他一些增进营养成分的农作物。
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英文: Carrots are high in Beta-carotene which the body converts to vitamin A, essential for healthy vision.
中文: 不过生活中吃胡萝卜确实对身体有好处，因为胡萝卜中富含β-胡萝卜素，它能在人体中转换成维生素A，对维持健康非常有益。
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英文: Iron role : to stimulate hemoglobin, muscle protein synthesis, the prevention of anemia and a strong physique, enhance human energy metabolism, for beta-carotene into vitamin A, antibodies produced to promote, enhance immunity, enhancing drugs in the live
中文: 铁的作用：刺激血红蛋白、肌蛋白的合成、预防贫血、强健体质，增强人体能量代谢、促进β-胡萝卜素转化成维生素A，促进抗体的产生、提高免疫力，增强药物在肝脏的分解。
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英文: Researchersat Warsaw Agriculture University found organic tomatoes contained morevitamin C, beta-carotene and flavonoids than conventional ones. Theywere lower, however, in lycopene, which is another beneficial nutrient.
中文: 华沙农业大学研究人员发现，与传统西红柿相比，有机西红柿含有较多的维生素C、b-胡萝卜和黄酮，但另一种有益的营养成分番茄红素含量却较低。
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