Unfortunately, swine flu's infectiousness and the globalized flow of human travel make for a very dangerous combination.
不幸是,猪流感传染性和人员流动球化形成了一个非常危合。
Unfortunately, swine flu's infectiousness and the globalized flow of human travel make for a very dangerous combination.
不幸是,猪流感传染性和人员流动球化形成了一个非常危合。
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