Brunel University researcher suggests that chemicals in household cleaning products explains why excessive hygiene is linked to increased asthma and allergies.

布鲁内尔大学的研究人员称，家用清洁剂中所含的化学成分说明了，为什么过分清洁会增加哮喘和过敏的发生率。

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Carefully read the labels of chemicals and household cleaning supplies, such as bleach, before using them.

在使用这些东西之前，仔细地阅读化学物和家用清洁用品的标签，例如漂白剂。

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