英文關鍵字
abstract
architecture
artificial
beautiful
blue
bridge
building
cascade
chapel
city
cityscape
clever
color
cool
curtain
dam
day
daylight
destination
droplets
element
engineer
engineering
europe
fall
floret
flow
flowing
force
fountain
image
lake
level
light
liquid
lucerne
medieval
old
reuss
river
shape
summer
swiss
switzerland
teeth
textured
travel
water
waterfall
weir