英文關鍵字
activist
agriculture
care
caucasian
charity
child
earth
eco
ecological
ecology
ecosystem
environment
environmental
event
family
female
garden
gardening
green
group
happy
leisure
lifestyle
male
man
nature
organization
outdoors
park
participation
plant
planting
reforestation
restoration
sapling
save
seedling
shovel
smile
smiling
social
spring
summer
togetherness
tree
volunteer
volunteering
volunteerism
woman
young