英文關鍵字
bin
bio
bottle
box
can
cheerful
clean
collection
community
concept
consumption
container
disposal
eco
ecological
ecology
environment
flora
garbage
green
hand
help
junk
litter
man
nature
outdoor
park
people
person
plastic
pollution
protect
recycle
recycling
refuse
reuse
rubbish
rust
scrap
sustainable
throw
trash
urban
volunteer
waste
working