抛开工业方面的障碍，可能感冒难治的最大理由是，鼻病毒有很多类型而且对任何药物或疫苗都呈现出移动靶标。
Industry hurdles aside, perhaps the biggest reason the common cold has long defied treatment is that the rhinovirus has so many strains and presents a moving target for any drug or vaccine.
抛开工业方面的障碍，可能感冒难治的最大理由是，鼻病毒有很多类型而且对任何药物或疫苗都呈现出移动靶标。
Industry hurdles aside, perhaps the biggest reason the common cold has long defied treatment is that the rhinovirus has so many strains and presents a moving target for any drug or vaccine.
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