英文關鍵字
bottle
bottled
city
clean
contaminated
contamination
dirt
ecology
environment
filth
garbage
junk
lake
nature
plastic
polluted
pollution
recyclable
recycle
rubbish
trash
waste
water
英文關鍵字
bottle
bottled
city
clean
contaminated
contamination
dirt
ecology
environment
filth
garbage
junk
lake
nature
plastic
polluted
pollution
recyclable
recycle
rubbish
trash
waste
water