英文關鍵字
aluminum
background
block
bottle
broken
can
clean
compressed
conservation
consumerism
consumption
crushed
dirt
dirty
discard
discarded
disposal
dump
ecological
ecology
environment
environmental
facility
garbage
heap
industrial
industry
iron
junk
junkyard
landfill
material
metal
nobody
outside
package
pile
plant
plastic
pollution
recyclable
recycle
recycled
recycling
rubbish
square
steel
trash
used
waste