英文關鍵字
ability
action
activity
adult
air
balance
black
board
cat
child
circus
counterpoise
equilibration
equilibrium
equipoise
exercise
feet
flat
food
fun
games
generation
girl
hard
hobby
jump
legs
man
playful
poise
practice
ready
roller
selfcontrol
sphere
sport
stability
stable
stack
standing
summer
woman