一、报警用英语怎么说报警器里那个报警，不是平时所说的叫？
报警 call the police give an alarm go to the police ring the bells backward 4种 报警
1、 （向警方报告情况） report (an incident) to the police
2、 （发紧急信号） give an alarm:
二、关于在学校遇险报警的英语作文？
As teenagers,we should always keep safety in mind.But how can we keep safe?Here are some of my suggestions.
First,you should be careful when you make friends on line.Second,mkae sure to call the police for help when you are in danger.Third，don't eat food that has gone bad.Forth，we can't go swimming in the deep water.What's more，when we go to school or go home by bike, we should go along the right side and should not ride at a high speed.
In a word, following these safety rules above can make us live in peace.