英文關鍵字
galapagos
islands
stingray
sand
floor
seafloor
sea
pebbles
ray
diving
underwater
fish
scuba
divers
wildlife
aquatic
filtration
feeding
fins
nature
tourism
animal
creature
swimming
cartilaginous
marine
myliobatoidei
life
air
tank
movement
freedom
free
bubbles
sediment
wetsuit
reef
seabed
rock
plant
seaweed
school
murkiness
spots