英文關鍵字
sign
traffic
pedestrian
road
electronic
light
street
green
summer
city
control
transport
signal
stop
transportation
urban
walk
safety
car
red
danger
illuminated
symbol
electric
regulation
safe
warning
display
equipment
glow
drive
closeup
crosswalk
yellow
flash
led
caution
intersection
crossroad
lamp
color
security
icon
evening
design
blink
moving
broll