英文關鍵字
bedding
blizzard
bunch
can
city
clean
cleaning
closed
cold
community
container
design
dirty
dump
environment
equipment
garbage
harvesting
illustration
industry
lots
machine
machinery
material
new
overflow
plastic
plow
pollution
problems
recycle
removal
residential
road
roads
snow
snowplow
snowstorm
storm
street
tractor
transport
transportation
truck
weather
white
winter
work