英文關鍵字
boulder
city
colorado
concrete
dam
electricity
generate
hoover
infrastructure
large
lights
massive
nevada
power
renewable
resource
river
road
timelapse
tourists
traffic
utility
water
wpa
英文關鍵字
boulder
city
colorado
concrete
dam
electricity
generate
hoover
infrastructure
large
lights
massive
nevada
power
renewable
resource
river
road
timelapse
tourists
traffic
utility
water
wpa