戴口罩啊，一百年前就知道的事儿：凡呼吸道传染病，戴口罩是最好的保护措施。可借去年初CDC那群废物（装着）不知道

来源: fuz 于 2021-08-25 16:09:32 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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