英文關鍵字
activist
bag
care
clean
cleaning
closeup
collecting
earth
eco
ecology
ecosystem
environment
environmental
family
female
five
forest
garbage
gesture
help
high
litter
male
man
nature
park
picking
plastic
pollution
preservation
project
protection
recycle
resource
responsibility
rubbish
save
smile
smiling
social
society
teamwork
together
trash
volunteer
volunteering
waste
wildlife
woman
young