英文關鍵字
bottle
contaminate
contamination
destroy
dirt
dirty
disaster
discard
discarded
dump
dumping
earth
ecological
ecology
ecosystem
environment
environmental
filthy
float
floating
garbage
ground
industrial
junk
lake
landfill
messy
nature
pile
plastic
pollute
polluted
pollution
pond
problem
refuse
river
rubbish
sewage
stream
toxic
trash
urban
waste
water