英文關鍵字
action
asphalt
attention
bulldozer
child
city
clean
clear
climate
cold
danger
driving
equipment
europe
excavator
ice
machine
meteorology
morning
motion
moving
municipal
outdoors
pack
pillstractor
plow
plowing
removal
remove
road
safety
season
seasonal
service
shoveling
slow
slowmotion
snow
snowdrift
snowfall
snowplow
snowstorm
snowy
street
takes
tractor
urban
vehicle
weather
white
winter
wintertime
work
yellow