Sometimes we will search education resource in the network, yet it is difficult to satisfy this requirement properly by using general searching-engine.
在网络中搜索各种教育资源时，通用的搜索引擎很难满足特定的需求。
Conforming to the universal full-text search engine, it is also confronted with the problem of low-recall ratio and high dissipation of web resource.
但与通用全文搜索引擎类似，全文检索的垂直搜索引擎存在着查全率较低、网络资源消耗过多等问题。
The resource of Yahoo includes two parts, one is search engine and the other is portal.
雅虎可开发的资源大致有两块，一是搜索，一是门户。
The resource of Yahoo includes two parts, one is search engine and the other is portal.
雅虎可开发的资源大致有两块，一是搜索，一是门户。
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