由于IP地址分配的增长速度非常快，人们普遍认为在2011年底会达到极限。

Due to acceleration of IP address assignment, it is widely expected we will hit that mark before the end of January 2011.

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这个用况场景对采用自底向上方法开发的地址簿web服务与采用自顶向下方法开发的同一个Web服务的互操作性进行了比较。

This use case scenario compares the interoperability of an address book Web service developed using the bottom-up approach to that of the same Web service developed using the top-down approach.

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