英文關鍵字
activity
antiphase
boy
brother
child
childhood
coast
day
female
forest
fun
game
girl
grass
hand
hold
human
jeans
jump
kid
lake
leaves
leisure
little
male
motion
movement
opposite
outdoor
outside
pair
park
people
phase
play
resonance
reversed
season
shore
sister
sky
summer
together
trampoline
tree
try
two
water
wood
youth