英文關鍵字
activity
adrenalin
air
courage
danger
extreme
fall
falling
free
freedom
freefall
fun
height
high
his
hobbies
instructor
jump
jumping
jumpsuit
parachute
parachuting
paratrooper
photo
piloting
profession
responsibility
skidiver
skill
sky
skydiver
skydiving
sport
sportsman
student
tandem
terminal
turning
velocity
video
vvideo