英文關鍵字
abstract
accident
arrest
background
biology
blue
blur
blurred
bokeh
car
city
cops
crash
crime
danger
ecology
emergency
environment
flash
flashing
focus
ghetto
green
hidef
incident
investigation
law
lights
night
nighttime
outdoors
patrol
police
protection
red
road
siren
street
strobe
traffic
unfocused
urban
vehicle