最出色的搜索引擎在用来寻人时为什么会表现得如此差强人意呢？
How come the best search engines fail so miserably when it comes to people search?
传统上，编配引擎往往表现为一个黑盒，它与系统的其它部分广泛交流，却并不提供访问它其中内容的办法。
Traditionally, orchestration engines have been black boxes that interact extensively with the rest of your system but don't provide any way to access what's under the hood.
出口和消费，这两个带动经济自主恢复的最大的引擎表现也不如第一季度。
Exports and consumer spending, the two best engines of a self-sustaining recovery, contributed less to growth than in the first three months of the year.
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