英文關鍵字
activist
advertising
aged
agriculture
bush
can
care
charity
cheerful
closeup
conservation
earth
eco
ecological
ecology
ecosystem
elderly
environment
environmental
event
garden
gardening
green
happy
landscape
male
man
mature
nature
park
parkland
plant
planting
protection
reforestation
restoration
save
senior
smile
smiling
social
spring
summer
tree
volunteer
volunteering
volunteerism
watering
welfare