你說的有道理。我想到的做法是咳前不變動口罩，咳後換口罩。不過咳嗽時人下意識的反應，很難控製。

來源: 吃與活於 2020-10-09 19:26:59 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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