英文關鍵字
broom
sweeping
asphalt
time
lapse
process
plant
branches
hot
sunny
day
man
flipflops
work
difficult
weather
conditions
person
construction
leaf
worker
sweeper
sweep
street
service
road
garbage
urban
dust
city
equipment
cleaner
cleanup
dirty
waste
cleaning
sidewalk
park
occupation
manual
environment
maintenance
job
janitor
footpath
pavement
working
brush
dirt
cap