英文關鍵字
adrenaline
adventure
aerial
aeronautics
aerostatics
air
airship
aviation
ballon
balloon
ballooning
balloons
balon
baloon
burn
burning
cupola
danger
energy
extreme
fire
flame
flames
fuel
gas
glimmer
heat
hot
inferno
inflate
jet
light
motion
navigation
orange
parachute
power
rope
shell
tongue
transport
transportation
travel
warm