Hay fever 僅僅是一種說法，不是hay引起。引起Hay fever最重要的原因之一是花粉

來源: 於 2020-10-04 12:32:06 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

這是Mayo Clinic上摘的：Hay fever is caused by an allergic response to outdoor or indoor allergens, such as pollen, dust mites, or tiny flecks of skin and saliva shed by cats, dogs, and other animals with fur or feathers (pet dander).