英文關鍵字
animation
motion
green
screen
chromakey
hand
drill
machine
icon
simple
isolated
black
equipment
floor
hammer
handsome
handwork
hard
heavy
industrial
industry
jack
jackhammer
labor
laborer
maintenance
outdoor
path
pavement
people
person
pneumatic
power
repair
rock
technology
tool
work
road
asphalt
breaker
breaking
builder
cement
chisel
clipping
concrete
construction
dangerous
demolition
destroy
dirty
drilling
electric