英文關鍵字
abstract
bank
big
brother
building
camera
cameras
cctv
city
composite
concept
cops
crowd
crowds
graphic
monitor
monitoring
mounted
new
nyc
people
person
pole
police
privacy
recording
road
safety
scene
screen
secure
security
society
station
street
surveil
surveillance
surveilling
surveils
town
watches
watching
york