英文關鍵字
aqua
aquamarine
aquatic
body
clear
current
ebb
ebbing
environment
environmental
flow
flowing
lake
limpid
nature
navigate
navigating
navigation
preservation
protection
reflection
ripple
rippled
rippling
river
rivulet
sail
sailing
sea
seabed
seafloor
seawater
stream
surface
tidal
tide
turquoise
undulate
undulating
undulation
water
wave
waveform
wavelet
waves
wavy