从而得知未知信息（unknown information）：the finished time. 进而得出本题的测试点（testing point）：When was her research finished?
基于42个网页-相关网页
The result of comparison and contrast shows that the devices to signal Given Information, New Information and Information Focus are similar, but that the syntactic resource in English is more plentiful than that in Chinese.
对比发现，在英语和汉语中，提示已知信息、未知信息、信息中心的手段大致相同，但具体使用时各有偏重。
参考来源 - 从信息结构的视角看翻译Search engines can be used to locate a huge number of information on network as well as some unknown information can be quickly found.
利用搜索引擎能够查找数量庞大的网络信息,并可以迅速查到未知信息。
参考来源 - 中文搜索引擎的设计与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
规则推理从已知事实推导出未知信息；
Rule reasoning can deduce unknown information from known fact.
花括号括起的数字表示有一些未知信息将替换括号和数字。
The number surrounded by curly brackets indicates that there is some generally unknown information that will replace the brackets and number.
这是一个不断发掘未知信息的艰难抗争过程，在过去的这些年里，它在许多方面都让我付出了无数的代价。
It is an ongoing struggle of unearthing information, which through the years has 18 taken its toll in many different ways.
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