英文關鍵字
bag
bin
black
bottle
can
clean
collection
container
dirty
disposal
dump
dustbin
eco
ecofriendly
ecological
ecology
environment
environmental
garbage
garden
green
industrial
industry
junk
litter
male
man
modern
nature
outdoors
paper
park
person
plastic
pollution
recycle
recycling
reuse
rubbish
sorting
street
throwing
trash
waste