英文關鍵字
among
bin
bottle
bottles
cheerful
child
children
clogging
colorful
concept
consciousness
container
contamination
contemplating
dangerous
destroy
destruction
disaster
dispose
dump
earth
eco
ecologic
ecological
ecology
environment
environmental
garbage
girl
green
industry
junk
litter
lying
plastic
polluted
progress
protection
recycle
recycling
responsibility
rubbish
school
threat
trash