英文關鍵字
alley
autumn
broom
city
clean
cleaner
cleanup
dead
dust
feet
female
foliage
garbage
groundskeeper
hard
hardworking
janitor
job
labor
lady
leaves
legs
litter
low
manual
municipal
occupation
outdoor
park
pavement
person
pile
poor
poverty
road
rubbish
salary
service
sidewalk
square
street
sweeper
sweeping
underpaid
urban
wage
walkway
woman
work
worker