您要查找的是不是：
- An electrical device that sets off an alarm when someone tries to break in. 当有人试图闯入时产生警鸣声的电器装置。
- turn off an alarm 关上闹钟
- Electrodes are placed inside the tanks that contain the fish and water from a nearby water supply, and they set off an alarm if conditions inside the tank change. 在水槽里放置电极，并从附近的水供给中给里面放置水和鱼，如果水槽中的水质条件发生改变，它们就会发出警报。
- After a little while,the English teacher turned off an epigram. 过了一会儿,英文老师作出了一首讽刺诗。
- That second's contact touched off an alarming ripple inside her. 第二次联系触及了她的内心，让她警惕起来。
- The machine equips with intelligent press watch that can disolqy is inside press,co-work with the system of extruding,protect machine, and give an alarm it over press till the machine is turned off. 配备智能压力显示器，能随时显示挤出机内挤出压力，并可与挤出系统连动，在超压的情况下报警直至停机，保护设备。
- Please turn off the alarm clock. 请把闹钟关了。
- He ran off an article for the local newspaper. 他为当地报纸匆匆写了篇文章。
- Quick, turn off the gas;the milk will boil over. 快把煤气关掉，牛奶要溢了。
- She has written off an account of her trip. 她一口气把旅行见闻写了下来。
- Please turn off the electric power. 请把电源关掉。
- It was like an alarm went off in my head. 我的头脑中好象响起一声警报。
- Do you mind if I turn off the light? 我把灯关掉你不反对吗?
- Turn off the lights when you leave. 离开时把灯熄掉。
- If you hear an alarm, leave the building immediately. 要是听见警报,马上离开大楼。
- The salesman tried to fob off an inferior brand on us. 那个推销员试图以劣质牌号骗卖给我们。
- To turn off(an aircraft engine) while in flight. 关引擎在飞行中关掉（飞机的一个引擎）
- A thermistor operates an alarm lamp. 热敏电阻操动报警灯。
- Press the reset button to turn off the alarm indicator. 按复位键关闭告警指示器。
- I just came off an assignment which had taken me two weeks. 我刚完成了一项任务，它占用了我两个星期。
