英文關鍵字
engineer
worker
construction
building
repair
ladder
elevator
equipment
brick
cement
build
project
blueprint
tool
helmet
builder
industry
truck
machinery
drill
mixer
window
sand
brush
saw
maintenance
architect
architecture
infrastructure
plumbing
apartment
shovel
door
cone
trowel
plaster
house
drilling
wall
concrete
icon
motion
animation
hd
animated