英文關鍵字
active
activity
adult
adventure
animal
biology
bleaching
boat
bright
check
compressed
conservation
coral
course
cylinder
dive
diver
divers
diving
education
enviroment
equipment
equiptment
excitement
family
fins
fish
flipper
flippers
footage
gas
gauge
gear
global
hand
holiday
instruction
instructor
lady
learning
leasure
marine
mask
nature
needle
nitrox
ocean
open
oxygen
padi
people
photography
pool
prepare
pressure
protected
psi
recreation
recreational
regulator
safety
scuba
sea
set
skills
sport
ssi
stopcock
swim
tank
tourism
travel
tropical
underwater
valve
video
warming
water
women