英文關鍵字
animal
bag
bird
contaminated
contamination
damage
destruction
dirty
disposable
dump
earth
ecological
ecology
environment
environmental
environmentally
floating
fowl
garbage
global
hen
junk
lake
landscape
litter
moor
moorhen
nature
nest
planet
plastic
pollute
polluted
pond
recyclable
recycle
recycling
reduce
river
rubbish
save
trash
waste
water
wild
wildlife
wildlifepollution
world