英文關鍵字
background
bin
box
can
caucasian
child
city
clean
collection
consumption
container
contamination
dirty
discarded
disposal
dispose
dump
dustbin
eco
ecological
ecology
environment
environmental
food
garbage
green
hand
junk
kid
litter
modern
nature
paper
plastic
pollution
protect
recycle
recycling
reduce
reuse
reusing
rubbish
separation
sorting
street
sustainable
taking
trash
urban
waste