英文關鍵字
activist
care
charity
child
clean
closeup
earth
eco
ecological
ecology
ecosystem
environment
environmental
event
female
forest
girl
help
kid
love
nature
organization
outdoors
park
participating
participation
pointing
preservation
pretty
problem
project
protection
public
recycle
responsibility
save
schoolgirl
service
smile
smiling
social
society
standing
volunteer
volunteering
waste
welfare
wildlife
work