英文關鍵字
awareness
background
bin
bottle
campaign
care
clean
collect
concept
conservation
day
earth
ecological
ecology
environment
environmental
female
garbage
global
green
hand
junk
litter
management
nature
object
outdoor
park
people
plastic
pollution
problem
protection
public
recyclable
recycle
recycling
reuse
rubbish
separation
throw
throwing
tourism
tourist
trash
travel
volunteer
warming
waste
woman
yellow