英文關鍵字
adjusting
blue
boiler
caucasian
central
check
device
engineer
equipment
fix
furnace
gas
hand
handyman
heater
heating
home
house
industry
install
installation
installer
installing
job
labor
maintenance
man
mechanic
men
open
pipe
plumber
plumbing
professional
repair
repairman
service
setup
system
technician
technology
tool
uniform
wall
water
work
worker
workman