英文關鍵字
activist
background
bag
bottle
care
child
children
clean
collecting
concept
earth
eco
ecology
environment
environmental
family
female
forest
garbage
happy
help
lifestyle
litter
little
love
nature
outdoor
outdoors
outside
park
people
person
picking
plastic
pollution
protection
recycle
recycling
reuse
rubbish
sky
summer
trash
volunteer
volunteering
volunteers
waste
woman
work
young