英文關鍵字
action
alley
asphalt
automatically
breaker
breaking
buster
chipper
compressed
concrete
construction
covering
damage
demolish
demolished
destroy
development
dig
digging
ditch
energy
equipment
functioning
hammer
hand
hard
heavy
industries
jackhammer
machinery
manual
narrow
operate
operated
operating
pavement
paving
pickaxes
picker
plugger
pneumatic
power
preparation
puncher
reinforcement
repair
road
ruined
shovel
sidewalk
site
spade
tools
tractor
trench
video
wall
with
work
worker
working