英文關鍵字
3d
african
background
builder
building
cartoon
caucasian
character
chromakey
confident
construction
constructor
contractor
design
engineer
engineering
ethnicity
gesture
green
hard
hardhat
hat
helmet
human
icon
illustration
industrial
industry
isolated
isometric
job
male
man
object
occupation
painter
people
person
profession
professional
screen
sign
symbol
white
work
worker
young