Originally, we thought it's information needs only; we just need to find a web page that contains the query word, but it's actually not.

起初，我们以为人们只是需要信息而已;,只需找到一个带有关键字的网页即可，但实际上并不是。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选