機器
environmental
abandoned
background
bottle
broken
concept
crying
damage
dead
destruction
dirty
disposal
dump
ecology
electricity
electronic
environment
equipment
forest
garbage
grass
green
heap
household
industrial
industry
iron
junk
junkyard
material
metal
nature
object
obsolete
old
outdoor
pile
pollution
recycle
recycling
refrigerator
rubbish
rust
scrap
steel
technology
trash
used
waste