英文關鍵字
bottle
bottles
business
center
clean
contamination
conversion
dirty
disposal
dreadlocks
ecological
ecology
environment
environmental
factory
garbage
green
heap
industrial
industry
jacket
landfill
line
litter
material
nature
organic
plant
plastic
pollution
processing
recast
recycle
recycled
recycling
rubbish
scoop
scrapyard
shovel
sorting
trash
unrecognizable
used
volunteer
waste
woman
work
worker
yellow