英文關鍵字
air
aircraft
airdrome
airfield
airplane
angle
armed
army
aviation
beautiful
blue
climb
close
cloud
cockpit
crew
demonstration
fast
field
fighter
flight
fly
force
gate
grass
gray
green
ground
high
horizon
industry
pilot
push
ready
russia
sky
small
space
speed
strength
supersonic
sweep
tail
technology
terminal
two
war
weapon
wing