現在是疫情的毒性減弱，像流感一樣對人沒有多大傷害了？還是人的免疫力在打過疫苗後都提高了，就不怕感染了？

來源: ToClouds 於 2023-05-24 11:49:24 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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