英文關鍵字
activity
adult
background
bark
care
conservation
countryside
day
deforestation
earth
ecology
elderly
embrace
environment
family
forest
future
generation
global
green
happy
help
hug
leaves
leisure
lifestyle
love
male
natural
nature
old
outdoor
outside
park
people
protection
retired
retirement
save
senior
smile
sunlight
sunny
together
tree
trunk
volunteer
wildlife
woman
woods