Whoever is being plagued by a problem will search for the causes.
不论谁被一个问题困扰时都会去找原因。
The emergence of enterprise search engine is specifically for solving this problem.
企业搜索引擎的出现，正是为了解决此类问题。
It is a unavoidable problem for building an expert search engine.
它是建立一个专家搜索引擎的首要问题。
It is a unavoidable problem for building an expert search engine.
它是建立一个专家搜索引擎的首要问题。
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