For example, if the requestor is only expected to play audio for a very shorttime, it may request transient focus.

例如，请求者只想播放很短的音频，可能会请求临时的焦点。

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The 20W box will play audio streamed from any AirPlay-capable device on the same WiFi network while it sits demurely on a wall outlet.

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What's more, Franklin Electronics is soon to launch a handheld gadget that combines Microsoft Reader with the ability to play audio books and MP3 music.

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For alternate methods of routing audio through the device, there's a USB port that can play digital audio files straight off of various PMPs and USB thumb drives.

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