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一到春天,万物复苏。对于有花粉过敏症的人来说,这是个难过的季节。这篇文章从过敏性鼻炎和外源性哮喘两个方面介绍了过敏症的原因和预防方法。
When spring comes, everything revives. This is a sad season for those with pollen allergies. This article describes the causes and prevention of allergies from both allergic rhinitis and extrinsic asthma.