英文關鍵字
workers
heavy
machinery
one
floor
house
construction
sound
cranes
development
building
horizontal
sensibility
site
safety
steel
architecture
large
frame
stages
structure
business
estate
concrete
equipment
outdoors
pipe
apartment
hoisting
sunlight
rise
window
high
growth
manual
lift
wall
iron
labour
modern
big
tower
typically
roof
bricklayers