英文關鍵字
abandoned
bag
bin
bottle
broken
can
clean
color
concept
conservation
container
crumpled
dirty
disaster
discarded
disposal
dispose
dump
ecological
ecology
empty
environment
environmental
garbage
green
heap
isolated
junk
litter
material
metal
nature
nobody
object
old
people
pile
plastic
pollution
problem
recycling
rubbish
scrap
throw
trash
waste
water