隻是個別人，感染了，但無症狀。這正是疫苗的目的，有效地控製疾病進程，消滅在萌芽之中

來源: fuz 於 2020-09-27 17:31:19 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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