英文關鍵字
adjusted
alert
automatic
autonomous
background
brake
car
caution
city
compliance
control
danger
detection
deterrent
device
digital
display
driving
education
educational
equipment
face
fifty
forest
france
french
green
happy
hour
indication
indicator
information
kilometer
kilometers
law
limit
limitation
objective
panel
per
prevention
preventive
radar
road
sad
safety
security
shows
sign
smile
solar
speed
speedometer
street
system
traffic
violation