英文關鍵字
aerial
aeroplane
aggression
air
aircraft
airplane
armament
armed
army
atmosphere
attack
avia
aviation
background
blue
bomber
conflict
contrail
defense
fast
fighter
flight
fly
force
high
interceptor
jet
military
modern
pilot
plane
power
protection
russia
security
sky
speed
stream
supersonic
syria
technology
trace
trail
transport
turbojet
ussr
war
warfare
warplane
weapon