疫苗將人們拖入死亡率不那麽高的Delta變種。貢獻大大地。中國是靠死防死封拖入，降低了死亡率。

來源: 老子說兩句於 2021-10-21 10:33:19 [舊帖] [給我悄悄話] 本文已被閱讀：次

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