英文關鍵字
adventure
astronaut
astronomy
boy
cardboard
child
childhood
children
clever
cosmonaut
costume
discover
dream
dreamer
earth
explorer
fast
flight
fly
fog
follow
future
galaxy
game
get
hands
happy
helmet
home
imagination
kid
kindergarten
planet
play
playing
pretend
school
science
solar
space
spaceman
spaceship
start
study
suit
uniform
young