英文關鍵字
rubbish
environment
plastic
pollution
junk
dump
waste
trash
recycle
dirty
disposal
ecology
garbage
recycled
recycling
environmental
pile
industry
polyethylene
landfill
industrial
bottle
reuse
eco
ecological
green
technology
climate
plant
factory
colorful
bag
recyclable
dispose
global
discarded
nature
stack
symbol
junkyard
awareness
city
toxic
heap
grunge
polluted
material
hazard
machine