據說至今也沒有口罩能防新冠病毒的確鑿證據。偏向科學訓練的可能會等證據再行動，偏向工程訓練的應該是能戴就戴

來源: 周老大於 2025-06-29 07:38:45 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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