英文關鍵字
bottle
bottles
center
compress
conversion
conveyor
dirt
dirty
disposal
dreadlocks
ecological
ecology
environment
environmental
factory
garbage
heap
industrial
industry
jacket
landfill
line
litter
material
nature
organic
plant
plastic
pollution
press
processing
recast
recycle
recycled
recycling
remove
rubbish
scrapyard
separate
sorting
squeeze
top
used
volunteer
waste
woman
work
worker
yellow