英文關鍵字
pollution
bottle
plastic
garbage
nature
dump
environment
waste
forest
recycling
environmental
dirty
problem
ecology
bag
rubbish
trash
landfill
illegal
outdoor
damage
junk
litter
green
tree
closeup
conservation
ecological
pollute
industry
branches
bad
hazard
irresponsibility
pine
earth
careless
rusty
paper
trunk
hygiene
recycle
autumn
recovery