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“只闻钟声滴答,而我们却不知道时间。”国外一位流感专家如此感叹预测流感爆发时间之难。在过去一个多月里,整个世界都在为甲型H1N1流感的流行而揪心。更多的人注意到这样一个事实:
“Only heard bells, and we do not know the time. ” A foreign flu expert lamented the flu outbreak of the time difficult. Over the past month or so, the entire world has been worried about the pandemic of the H1N1 influenza. More people noticed the fact that: