利用する
announcement
arrow
basket
bin
clean
contamination
dirty
dont litter
earth day
eco
ecofriendly
ecological
ecology
event
fresh
garbage
go green
green action
green living
hand
health
healthy
hold
infographic
junk
keep clean
litter
littering sort
pollution
recycle
reduce
reuse
rubish
save the earth
save the world
sign
signboard
sticker
symbol
throw
throwing
trash can
warning