On the top of the nano are a Sleep/Wake button and shuffle-like Volume Down and Volume Up buttons.

在 nano 的顶部有个睡眠/唤醒按钮以及和 shuffle 类似的音量降低和音量升高按钮。

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You can now press the Volume Up button to snap a picture; it falls exactly where a real camera's shutter button would be.

如今，你还可以通过上方的“音量按钮”来拍照，它简直就变成了一个快门按钮。

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Power off your phone and go back into downloading mode by holding down Volume down, Home button, and Power button then hit the Volume Up button.

您的手机关机，并返回到下载模式按住音量调低，主页按钮，电源按钮，音量按钮，然后撞了上去。

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Can use the volume up button as a shutter trigger.

FORBES: Apple: Live From The WWDC; OSX Lion, iOS 5; iCloud

Its body is constructed entirely of plastic, save the aluminum power button up top and volume rocker on the side, plus the sliver of metal serving as the earpiece grill.

ENGADGET: BlackBerry's new Dev Alpha B handset runs BB10, we go hands-on

There's a slender power button up on the top and, on the upper-left, a three-way volume rocker like those found on many BlackBerry handsets.

ENGADGET: iPod nano review (2012)