機器
asphalt
automobile
blizzard
car
clear
cold
color
condition
covered
dangerous
drive
freeze
high
highway
ice
icy
lane
maintenance
motion
outdoor
perspective
plow
removal
road
safety
season
service
slippery
snow
snowplow
snowy
storm
street
track
traffic
transportation
travel
truck
vehicle
vertical
way
weather
white
winter
work