To check this, turn off your device, then turn it back on with the 'back' key held.

要检查这，请关闭您的设备，然后打开它的'回'的关键举行。

youdao

This article applies to you if you you try to turn off your device, and it turns back on after a few seconds.

如果你试图关闭机器，但是几秒钟后它自动打开。

youdao

When you go places, turn your mobile device off, or leave it behind, so you can be disconnected from the online world and interruptions, and connected to the real world and real people.

如果出去，就把手机关掉或者干脆不带，断绝网络世界的干扰，让自己接触真实的世界和人。

youdao

According to the release notes, iOS 4.3.3 reduces the size of the location database cache, stops backing the cache up to iTunes when you connect your device to a computer, and deletes the cache entirely when you turn Location Services off.

FORBES: From The That-Was-Quick File: Apple Makes Location-Tracking Fix

For instance, if you see that your kid is playing Scribblenauts while he or she is at school, you can remotely turn off the device.

FORBES: Parents Need Mobile Device Management, Too