疫情之前我看了好長時間各國的人口金字塔。印度沒有達到群體免疫，隻是孟買的貧民區達到了群體免疫。

來源: solo1 於 2021-01-02 15:11:39 [舊帖] [給我悄悄話] 本文已被閱讀：次

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