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