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。

youdao

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)