英文關鍵字
waste
landfill
garbage
environment
dump
trash
pollution
ecology
dirty
industry
rubbish
plastic
disposal
recycling
consumerism
management
recycle
site
conservation
pile
environmental
heap
truck
bulldozer
industrial
treatment
ecological
dirt
compactor
sanitary
refuse
large
sky
hazardous
bin
material
contamination
dust
reuse
junk
nature
pet
bottle
paper
consumption
mass
background
yard
bag
crushed
litter