英文關鍵字
aerial
agriculture
air
autumn
beautiful
calm
camera
circle
color
contour
electric
electrical
energy
engineering
evening
field
flare
fly
harvest
high
industrial
industry
light
lines
metal
millet
native
natural
near
oats
opposite
optical
over
power
rye
steel
structure
summer
sun
sunset
technology
tower
towers
trace
ufo
voltage
warm
wire
yellow