很多商店不允許戴有出氣口的口罩，必須外麵再加一層口罩，有出氣口的病毒會跑出去傳給別人。

來源: booooo 於 2020-08-15 15:13:16 [舊帖] [給我悄悄話] 本文已被閱讀：次

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