英文關鍵字
concrete
house
crane
construction
lift
building
scaffolding
knock
structure
equipment
tower
mechanism
moves
elevating
architecture
contractor
site
people
worker
build
urban
blocks
machine
industry
engineer
英文關鍵字
concrete
house
crane
construction
lift
building
scaffolding
knock
structure
equipment
tower
mechanism
moves
elevating
architecture
contractor
site
people
worker
build
urban
blocks
machine
industry
engineer