英文關鍵字
swing
wood
swinging
empty
park
forest
landscape
nature
seat
leisure
tree
nobody
childhood
missing
wooden
equipment
outdoor
outside
relax
travel
vacation
hanging
recreation
abandoned
playground
set
environment
garden
leaf
natural
background
plant
play
exterior
lonely
quiet
bench
depression
freedom
green
art
brown
left
outdoors
surface