英文關鍵字
agriculture
algarve
attraction
barrage
beliche
blue
concrete
construction
dam
electricity
energy
engineering
environment
equipment
famous
green
horizon
hydraulic
hydro
hydroelectric
infrastructure
irrigation
lake
land
landmark
landscape
lapse
modern
natural
nature
outdoor
outdoors
outlet
pan
portugal
power
reservoir
river
rural
scenic
sky
storage
structure
technology
time
timelapse
tourism
travel
tree
vacation
view
water