控方证人
prosecuting witness
警方调查
police investigation
具有证人资格
qualify as a witness
开导证人
prime a witness
可接纳的证人
admissible witness
可靠证人
credible witness; reliable witness
警
alarm; alert; police; vigilant; warn
警棒
truncheon
警报
alarm; alert; tocsin; warning
alarm
警报灯
alarm lamp
警报笛
alarm whistle
警报浮筒
alarm float
警报继电器
alarm relay
警报孔
telltale hole
警报牌
warning board
警报器
siren
alarming apparatus; annunciator; siren
警报球
storm-cone
警报网
warning network
警报温度计
alarm thermometer
警报系统
warning system