英文關鍵字
altruism
boyfriend
care
charity
cheerful
community
couple
ecology
environment
family
garden
gardening
girlfriend
green
group
happy
hispanic
latin
leisure
lifestyle
man
natural
nature
outdoors
park
participating
participation
people
person
plant
planting
rake
seedling
selfless
service
smiling
social
spring
summer
teen
teenage
teenager
tree
volunteer
volunteering
volunteerism
walking
welfare
woman
young