英文關鍵字
arch
architecture
bridge
center
city
concrete
copy
dam
downtown
falls
float
huge
hydroelectric
industrial
island
landmark
lock
mill
minneapolis
minnesota
mississippi
nature
outdoors
power
river
skyline
space
urban
usa
water
waterfall
英文關鍵字
arch
architecture
bridge
center
city
concrete
copy
dam
downtown
falls
float
huge
hydroelectric
industrial
island
landmark
lock
mill
minneapolis
minnesota
mississippi
nature
outdoors
power
river
skyline
space
urban
usa
water
waterfall