谷歌管理人员表示，他们用过去一年的时间来测试和疾病控制预防中心数据相左的新搜索结果，并对软件进行了调整，以使Flu Trends的结果更加准确。
It spent the past year testing new search results against data from the CDC, tweaking its software to make its results more accurate, Google executives said.
谷歌管理人员表示，他们用过去一年的时间来测试和疾病控制预防中心数据相左的新搜索结果，并对软件进行了调整，以使Flu Trends的结果更加准确。
It spent the past year testing new search results against data from the CDC, tweaking its software to make its results more accurate, Google executives said.
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