英文關鍵字
arrest
auto
bike
car
cop
crime
deputy
emergency
enforcement
felony
freeway
green
guard
gun
highway
insurance
justice
law
male
man
motor
motorbike
motorcycle
officer
order
parked
patrol
police
policeman
protect
protection
public
pursuit
road
safety
security
serve
sheriff
siren
speed
speeding
standing
street
surveillance
traffic
trousers
uniform
weapon
wheels
working