英文關鍵字
accident
broken
caution
city
collision
crash
damage
danger
dangerous
day
demolished
destroyed
down
drive
electrician
electricity
emergency
equipment
falling
fix
intersection
light
lights
maintenance
object
pole
problem
professional
red
risk
road
safe
safety
sign
signal
speed
stop
storm
street
technician
traffic
transport
transportation
urban
weather
wind
work
worker
workers
wreck