口罩的重要性排在VC前麵。“上策遠離，中策阻擋，下策對抗”。VC算在對抗，而且效率可能還不高

來源: 周老大於 2024-08-20 09:22:19 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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