最后，检测本地视频回放。

Finally, check for native video playback.

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现在苹果给iPhone4增加了本地视频通话功能，在智能手机竞争中又先行一步。

Now, Apple takes another step ahead of the smartphone competition by also adding native video calling capability.

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Google已经开始开发完全依赖HTML5的复杂网络应用工具，例如离线数据存储和嵌入本地视频。

Google is already developing sophisticated web apps that rely heavily on HTML 5 tools like offline data storage and native video embeds.

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