英文關鍵字
activity
adult
architect
architecture
background
blueprint
builder
building
business
businessman
caucasian
confidence
construction
constructor
contractor
coworkers
design
discussing
engineer
engineering
executive
explaining
hard
hardhat
helmet
holding
house
indoors
industry
looking
male
manager
meeting
men
paper
person
plan
professional
rapidly
safety
site
slowmotion
standing
suit
supervisor
tie
work
worker
young