英文關鍵字
activist
care
caucasian
charity
child
childhood
closeup
earth
eco
ecologic
ecological
ecology
ecosystem
education
environment
environmental
event
female
forest
girl
help
holidays
kid
love
nature
organization
outdoors
park
participation
preservation
pretty
problem
project
protection
public
recycle
relax
responsibility
rest
save
schoolgirl
smile
smiling
social
volunteer
volunteering
welfare
wildlife
work