• VACCINATING people against swine flu may be a lot easier than anyone dared hope, as it turns out that people have an unexpected degree of immunity to the pandemic now sweeping the world.

    人们接种疫苗抵抗流感任何人挑战希望容易得,根据目前情况,人们对现在席卷全球的流行有意想不到一定程度免疫性

    youdao

  • VACCINATING people against swine flu may be a lot easier than anyone dared hope, as it turns out that people have an unexpected degree of immunity to the pandemic now sweeping the world.

    人们接种疫苗抵抗流感任何人挑战希望容易得,根据目前情况,人们对现在席卷全球的流行有意想不到一定程度免疫性

    youdao

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