英文關鍵字
background
bin
bottle
box
can
caucasian
clean
closed
collect
collection
consumer
container
dirty
disposal
dispose
dump
dustbin
eco
ecologic
ecological
ecology
environment
environmental
garbage
glass
industry
junk
litter
loop
metal
modern
organic
paper
plastic
pollution
recycle
recycling
reuse
reusing
rubbish
segregation
sorting
street
symbol
taking
throwing
toxic
trash
walking
waste