But building a widely distributed search system that can search billions of pages in a fraction of a second is difficult, since network latencies are high.

 
  • 但是,要建立一个不到1秒内就可以搜索数以亿计的网页的广泛的分布式搜索引擎是很难的一件事,因为其中网络有很高的延时。
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