機器
above
asphalt
asphalt road
autumn
autumnal
broom
broom sweeping
brush
city
cleaner
cleaning
cleanup
day
dirty
driver
dust
ecology
environment
equipment
fall
fallen
foliage
garbage
industrial
leaf
leaves
machinery
municipal
outdoor
public service
raking
removal
road
rubbish
seasonal
service
sidewalk
small
storage
street
sweeper
sweeping
tool
tree
truck
urban
vehicle
wheel
worker