英文關鍵字
blizzard
city
clean
cleaner
cleaning
clearing
cold
driveway
equipment
form
freeze
frost
frozen
heavy
ice
industrial
industry
janitor
man
outdoors
pavement
removal
remove
road
season
shovel
shoveling
snow
snowdrift
snowfall
snowplow
snowstorm
snowy
stairs
storm
street
sweep
tractor
urban
vehicle
waistcoat
weather
wheel
white
winter
work
worker