英文關鍵字
bag
basket
bin
bottle
can
caucasian
clean
concept
container
disposal
drink
dump
dustbin
eco
ecology
environment
environmental
environmentally
food
garbage
garden
glass
green
hand
kid
litter
little
man
nature
object
outdoor
outdoors
people
person
plastic
pollution
protection
recycle
recycling
refuse
reuse
rubbish
save
street
throwing
trash
waste
white
world