英文關鍵字
attention
background
car
caution
city
close
color
control
countdown
cross
crosswalk
danger
daytime
equipment
figure
green
lamp
life
light
lights
object
pedestrian
prohibiting
public
real
red
regulation
road
safety
seconds
sign
signal
sky
stop
stoplight
street
streets
symbol
technology
time
traffic
transport
transportation
turn
two
urban
walk
warning
way