英文關鍵字
animal
aquatic
background
beach
beautiful
below
big
biology
blue
bottom
clear
coral
depth
fins
fish
food
fresh
group
large
life
light
marine
nature
ocean
pure
reef
saltwater
sand
scene
school
sea
shallow
shoal
sport
submerged
summer
sunbeams
sunlight
surface
swimming
travel
tropical
underwater
water
wave
wild
wildlife