虽然卫生条件的落后会滋生各种疾病,然而最近却有研究人员发现如果过分讲究卫生也不一定是件好事,它也许会使人的抗过敏能力下降,从而增加人们患上哮喘等过敏性疾病的机会。 Although poor hygiene conditions can breed a variety of illnesses, recently there have been researchers who found that over-emphasizing hygiene is not necessarily a good thing. It may reduce people’s anti-allergic abilities and increase their risk of developing allergic diseases such as asthma Opportunity.