英文關鍵字
alga
amazing
animal
animals
aquatic
arctic
background
beautiful
bell
bottom
clean
clear
coelenterata
coelenterates
colonies
coryphella
diving
fauna
food
hydroid
hydrozoa
invertebrates
jelly
jellyfish
life
marine
medusa
nature
nodding
ocean
polyp
predator
pure
reproduction
seabed
search
seaweed
slug
tubulariae
under
underwater
verrucosa
water
white
wild
wildlife