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。
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。
It is much quicker to turn up the radio's volume control by hand than it is to press a special button and say "radio-raise volume," he notes.
他注意到，直接用手调节收音机的旋钮来调整声音要比按住专用按钮再说“收音机——调大音量”要来得快得多。
There are a total of three, power/lock (one button) and up/down volume (two buttons).
共有三个，开机/锁定(一个键)、上/下（两个键）。
Press the Up button to increase the Speaker Volume.
按下按钮，以添加喇叭的音量。
Press the Up button to increase the Speaker Volume.
按下按钮，以添加喇叭的音量。
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