英文關鍵字
blue
calm
full
harmonius
hydrodynamics
lake
molecular
motion
nature
pacific
peaceful
placid
quiet
relaxation
relaxed
sight
silent
surface
tranquil
video
water
waves
wind
英文關鍵字
blue
calm
full
harmonius
hydrodynamics
lake
molecular
motion
nature
pacific
peaceful
placid
quiet
relaxation
relaxed
sight
silent
surface
tranquil
video
water
waves
wind