That's when you realized what had happened: Your friend had accidentally pressed the redial or speed-dial button on their cellular phone, which then placed a call to you.

那是在你明白过来是怎么回事的时候：你的一位朋友不经意地触碰了他的手机上的重拨或速拨按钮，于是拨通了你的电话。

youdao

It activates only one button: Press the F1 button and the phone begins to dial.

它只激活一个按钮：按下f 1按钮，电话就开始拨号。

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Since aperture is the main event in aperture priority mode, you may not need to press the aperture button; simply rotate the command dial and look for the changing Numbers in the LCD status screen.

就光圈优先模式来说，光圈是最主要的参数，所以你并不需要再按光圈按钮，直接转动指令盘并且在LCD上查看数值变化即可。

youdao

The camera itself looks very similar to the P310 -- there's a nifty mode dial up top, along with a zoom toggle, control dial, power button, stereo mics and a pop-up flash.

ENGADGET

The design is simple: it's just a plastic shell with a shutter button, a dial for controlling shutter speed and a hand grip -- the sort you'd normally find on a compact camera.

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On the right edge, you'll notice a volume jog dial for incoming chat audio and a backlit button for switching between speaker and headset mode.

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