英文關鍵字
pollution
garbage
river
village
disease
horizontal
poverty
slum
house
outdoors
riverbank
community
condition
criminal
destruction
forward
housing
human
hunger
hygiene
men
panoramic
poor
problem
recycling
social
society
suburb
teenager
women
land
misery
neighbourhood
people
plastic
rooftop
washing
bag
bank
bottle
danger
density
dirt
ghetto