從中國去年12月初僅僅2個星期80%人以上人口被一下子感染的情況來看，帶口罩基本Useless

來源: anne8 於 2023-09-14 09:03:45 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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