英文關鍵字
adult
birch
boy
care
child
childhood
day
down
enjoy
face
family
foliage
fun
grandchild
grandfather
grandparent
grandson
hand
happiness
happy
head
hold
house
human
joy
kid
laugh
leaves
leisure
lift
little
male
man
motion
movement
old
pair
people
play
retire
retirement
senior
smile
spring
sway
tilt
tree
two
up
young