英文關鍵字
alps
bag
bottle
container
contamination
corroded
danger
dirt
dirty
disaster
discard
discarded
discharge
disposal
dispose
dump
dumping
ecology
environment
environmental
garbage
goat
haze
heap
industrial
people
pile
plastic
pollution
recycling
refuse
rejected
risk
rubbish
sanitary
scrap
sea
species
stream
tourists
toxic
trash
trashy
trippers
ugliness
vulture
waste