And actually, about a year or so ago, of the idea of Google Flu Trends, with respect to the flu, where by looking at people's searching behavior today, we could know where the flu -- what the status of the epidemic was today, what's the prevalence of the epidemic today.
实际上，一年前左右， 曾经有过这样的一个，google流感趋势的想法 关于流感， 通过观察人们今天的搜索行为， 我们能知道流感的发病区... 传染病今天的状况， 以及传播的趋势。