方舟在解釋中國疫苗對Covid-19無效很好，用病毒受體ACE2肯定了美國疫苗的作用。

來源: 天地間22 於 2023-08-02 15:06:06 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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