Twingine-two to one search engine

I am always interesting about some people making different search engines together,because you can compare its results.Twingine is a search engine which put two to one together:Yahoo and Google=Twingine.

我总是对有些人把不同搜索引擎做成一起，因为你可以在使用搜索引擎时有一个客观的比较。Twingine便是这样一个将雅虎和Google合二为一的搜索引擎。