英文關鍵字
aerial
airborne
aircraft
airplane
aviation
defense
flight
flying
formation
fuel
helicopter
helicopters
maneuver
midair
military
mission
piloting
plane
refuel
refueling
skills
tanker
team
teamwork
英文關鍵字
aerial
airborne
aircraft
airplane
aviation
defense
flight
flying
formation
fuel
helicopter
helicopters
maneuver
midair
military
mission
piloting
plane
refuel
refueling
skills
tanker
team
teamwork