英文關鍵字
alga
algae
atlantic
background
biology
copy
environment
growth
lake
landscape
nature
outdoor
plant
pond
ripple
sea
seaweed
space
summer
surface
underwater
vegetation
video
water
英文關鍵字
alga
algae
atlantic
background
biology
copy
environment
growth
lake
landscape
nature
outdoor
plant
pond
ripple
sea
seaweed
space
summer
surface
underwater
vegetation
video
water