建立了高速公路绕城出入口的双向交通模型。
A two way traffic model of freeway entrance around city was established.
学会有效地使用Google——如果说Google是信息通道的入口，那么Google高级搜索便是最具效率的交通工具。
Learn to search Google Effectively - If Google is the prime portal to the information superhighway, Google's advanced search operators are the most efficient vehicles on the road.
学习高效的利用google——如果把google比喻成信息高速公路的入口，那么google提供的高级搜索服务可以说是这条公路上最有效的交通工具了。
Learn to search Google effectively. – If Google is the portal to the information superhighway, Google’s advanced search operators are the most efficient vehicles on the road.
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