英文關鍵字
activity
architecture
bamboo
blue
boom
built
city
cloud
cloudy
construction
contractor
crane
day
development
elevator
engineer
engineering
equipment
frame
heavy
hefting
house
housing
human
industrial
industry
lapse
machine
men
occupation
people
scaffolding
scene
silhouette
site
sky
steel
structure
sunset
tall
technology
time
timelapse
tower
urban
work
worker
workwear