匪警的英文：
bandit alarm; burglar alarm

bandit是什么意思：
n. 强盗，恶棍

The bandit gunned the guards down.
强盗枪杀了警卫。

The bandits took the village apart.
土匪们蹂躏这个村庄。

Very often the bandits are hard pressed by gendarmes or carbineers
强盗常常让宪兵和马枪兵逼得走投无路。

alarm是什么意思：
n. 警报器；闹钟；惊慌
v. 向...报警；使惊恐

In case of fire, sound alarm.
如遇火警，请拉响警报。

analogue detection and alarm system
模拟量探测器报警系统