英文關鍵字
bottle
closeup
collection
colored
compressed
concept
discard
disposal
dispose
dissolving
domestic
dump
eco
ecology
environment
environmental
garbage
heap
hot
household
industrial
industry
landfill
management
material
metal
moving
multicolored
packaging
plastic
pollution
polyethylene
processing
reactor
recycle
recycling
reduce
reuse
rubbish
solid
sorted
sorting
steam
trash
urban
waste