英文關鍵字
aged
architect
arms
builder
building
camera
cheerful
confident
construction
contractor
fifties
folding
foreman
happy
hard
hardhat
hat
helmet
high
house
industrial
industry
laughing
looking
male
man
management
manager
middle
older
one
person
safety
scaffolding
senior
site
smiling
standing
vest
vis
visibility
white
work
worker
working
yellow