英文關鍵字
arm
beam
block
breaker
bricks
builder
building
cement
cinder
concrete
construction
crane
crumble
crusher
demolish
demolition
destroy
down
edifice
equipment
excavator
girder
grapple
hardhat
house
impact
industrial
industry
iron
jib
job
laborer
lintel
machine
operator
pulverize
pulverizer
reinforced
residential
rotational
shatter
shear
skilled
smash
steel
structure
tear
technology
walls
work
working
workman