英文關鍵字
america
animal
animals
aquaculture
babies
bass
beautiful
carp
char
depth
ecosystem
ecuador
environment
environments
farm
farmer
farming
farmland
fish
fishing
freshwater
group
lake
large
latin
nature
pike
pisciculture
pond
predatory
purity
rainbow
river
rushing
salmon
south
stream
submerged
sunlight
swim
swimming
transparency
trout
turquoise
underwater
wild
wilderness
wildlife