英文關鍵字
footage
school
black
red
nile
tilapias
swimming
pond
environment
natural
swim
group
nature
fish
tilapia
oreochromis
niloticus
pla
nin
tubtim
ruby
aquatic
animal
life
beautiful
amazing
shoal
plenty
numerous
farm
lake
river
freshwater
relaxing
green
water
surface
ripple
garden
patio
yard
aquaculture
food
protein
vitamin
mineral
nutritious
low
fat
daytime
outdoor
sunlight
warm