英文關鍵字
abstract
architecture
background
beautiful
big
blue
bridge
building
city
clouds
color
concrete
construction
cross
crossing
day
design
diagonal
engineering
environment
forest
frame
futuristic
grass
green
grey
industrial
industry
lake
landscape
lines
natural
nature
oil
oilpipe
outdoor
outdoors
park
pipe
pipes
plant
river
season
sky
summer
travel
tree
trees
view
water