英文關鍵字
abandoned
animal
bag
canine
castaway
city
deserted
dirt
diseases
dog
dumping
eating
ecology
enviroment
food
friend
garbage
homeless
hunger
issue
metal
nature
nylon
old
paper
pet
pile
plastic
polluting
pollution
problem
problems
pvc
recycle
recycling
refuse
reusing
rummaging
site
social
starving
street
surviving
town
toxic
trash
urban
waste
yellow