英文關鍵字
aerial
architecture
barrage
barrier
blue
boat
bridge
cascade
castilla
concrete
construction
dam
day
electric
electrical
electricity
energy
engineering
environment
fall
famous
flood
flowing
gate
generator
green
hoover
hydro
hydroelectric
industry
lake
landmark
landscape
nature
nevada
outdoors
plant
power
project
reservoir
river
speed
station
streaming
structure
summer
supply
technology
view
water