@AbundantLandUse @HereToLearnFrom Polio is eliminated in most of the world.
@世界上大部分地区都已消除了脊髓灰质炎的大量传播。
@AbundantLandUse @HereToLearnFrom Polio is eliminated in most of the world.
@世界上大部分地区都已消除了脊髓灰质炎的大量传播。