英文關鍵字
acceleration
activity
aerodrome
air
aircraft
aircrew
airdrome
airfield
airplane
airport
airscrew
aspiration
aviation
beautiful
beginning
commercial
couple
courage
engine
evening
extreme
field
flight
fly
fold
helmet
jet
jump
landing
lifestyle
outwards
parachute
people
plane
powered
propeller
recreation
skydiver
skydiving
speed
sport
start
successful
sunset
team
towards
transport
walk