英文關鍵字
adult
bad
bin
city
countries
crisis
developing
dirty
disaster
dump
dumpster
dustbin
eating
environment
food
garbage
hard
hobo
homeless
hopelessness
hunger
hungry
junk
landfill
life
looking
men
paper
people
plastic
pollution
poor
poverty
problem
recycling
rubbish
sanitary
scene
situation
slum
street
toxic
tramp
unemployment
unhygienic
urban
vagabond
waste
worker
young