英文關鍵字
bin
bio
blue
bottle
box
can
clean
cleaning
collect
collection
concept
consumption
container
disposal
eco
ecology
environment
environmental
event
flora
garbage
garden
gloves
hand
leaf
lifestyle
litter
man
material
nature
outdoor
park
people
person
plastic
pollution
recycle
recycling
refuse
rubbish
scrap
segregation
trash
urban
volunteer
waste