英文關鍵字
big
earth
galaxy
hand
human
interesting
life
man
mars
palm
planet
revolve
rotate
rotating
saturn
scale
solar
system
touch
turning
unexplored
universe
unknown
unpopulated
venera
world
young
英文關鍵字
big
earth
galaxy
hand
human
interesting
life
man
mars
palm
planet
revolve
rotate
rotating
saturn
scale
solar
system
touch
turning
unexplored
universe
unknown
unpopulated
venera
world
young