英文關鍵字
animal
bag
bags
beak
bin
bird
black
city
container
corone
corvidae
corvus
crow
dirt
dirty
discarded
disposal
dump
dumping
eating
ecology
environment
environmental
feather
food
garbage
green
junk
litter
magpie
nature
outdoor
plastic
pollute
pollution
raven
recycle
refuse
rubbish
search
searching
seek
survive
tip
trash
waste
wildlife