英文關鍵字
building
business
cable
caliper
caucasian
closeup
computer
construction
digital
electric
electrical
electrician
electricity
energy
equipment
finger
fixing
hand
holding
home
house
indoors
industry
install
installation
installing
job
level
light
maintenance
man
manual
master
metal
people
plug
power
professional
repair
repairman
repairs
safety
screwdriver
socket
sockets
switch
technology
tool
wall
wiring
work
worker