The core problem of P2P file sharing applications is effective file searching mechanism.

P 2 P文件共享应用的一个核心问题是有效的文件搜索机制。

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P2P file sharing applications are becoming more and more popular in Internet. They have deployed their own content delivery networks to facilitate the publishing and searching of files.

P2P 文件 共享 应用逐渐成为互联网中的主流 应用，它们都部署了各自的内容分发网络用于 文件的发布与查找。

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The industry has failed to shut down file-sharing companies whose peer-to-peer software has legitimate applications.

ECONOMIST: Fightback or death-rattle? | The

Wukong represents a polar end of the file-sharing spectrum, pulling down dozens of DVDs, hours' worth of music and multiple applications every month.

FORBES: LimeWire, BitTorrent and BearShare...Oh My!