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There are a number of different foods that will help your body fight off sickness.
多种不同食物可以帮助你的身体抵抗疾病。
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Antibodies are produced by individuals'immune systems to fight off foreign pathogens.
为对抗入侵的病原体,人体免疫系统产生抗体。
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这意味着感觉压力大的妇女可能面临的宫颈癌风险越大,因为其免疫系统无法战胜引起宫颈癌的常见病毒。
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The crowd acclaimed the firemen for rescuing two people from the burning house.
人们称赞消防队员从燃烧的房屋中救出两个人。
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