英文關鍵字
adjustable
architect
background
blue
board
bolt
building
construction
constructionsite
defending
defense
duty
empty
engineer
engineering
equipment
gear
glove
group
hammer
hardhat
hardwood
hat
helmet
house
improvement
industrial
industry
instrument
jobsecurity
maintenance
nobody
objects
occupation
plastic
protection
protective
red
safe
safety
security
slowmo
slowmotion
stepladder
tool
tools
wire
work