英文關鍵字
crane
sky
cloud
work
construction
industry
clouds
engineering
structure
architecture
business
development
equipment
industrial
site
urban
project
blue
city
cranes
building
estate
machinery
skyscraper
steel
tower
technology
modern
built
sunset
high
tall
aerial
skyline
activity
apartment
concrete
time
silhouette
moving
container
home
housing
shipping