英文關鍵字
aeroplane
aerospace
airborne
aircraft
airfield
airplane
airport
airworthy
approach
aviation
aviator
beautiful
civil
civilian
departure
engine
flight
fly
freedom
fuselage
general
landing
light
monoplane
outdoor
passenger
pilot
piston
plane
pleasure
practice
private
propeller
recreation
recreational
runway
school
singe
sky
speed
takeoff
technology
tourism
training
transport
transportation
travel
wings