英文關鍵字
air
airborne
aircraft
airdrop
airplane
an2
antonov
army
aviation
biplane
cloud
crazy
danger
dangerous
drop
extreme
fall
ground
jump
low
mad
military
old
open
parachute
parachuting
paratrooper
plane
propeller
russian
show
sky
skydive
skydiving
soldier
soviet
spitfire
sport
transport
transportation
troop
ultra
war
window
ww2
zone