turn on和turn off的用法

　　例句：

　　They turn on their own kind and peck each other to death

　　它们开始攻击同类，拼命地互相啄着。

　　I didn't turn on the light, but groped my way across the room.

　　我没有开灯，而是一路摸黑走过房间。

　　例句：

　　I have to get up and turn off the radio

　　我必须起床关上收音机。

　　Turn off at the signpost for Attlebridge.

　　在路标处拐弯去往阿特尔桥。

　　Turn off the switch when anything goes wrong with the device.

　　如果装置出故障，就把开关关掉。