英文關鍵字
accident
authority
background
barrier
blink
block
blue
bright
car
city
cop
crash
crime
criminal
danger
driving
duty
emergency
enforcement
flashing
highway
hood
illuminated
investigation
justice
lamp
lane
law
light
lightbar
lighting
lights
night
nighttime
nnarrest
nnblockade
nnflare
nnprotection
officer
patrol
patrolman
police
protect
race
red
rescue
road
security
shining
siren
squad
stop
street
surveillance
twinkle
urban
vehicle
warning
wreck