英文關鍵字
architect
beard
builder
building
business
city
closeup
communication
concept
connection
construction
constructor
contractor
dam
development
employment
engineer
engineering
field
foreman
grass
hardhat
helmet
industrial
industry
job
male
man
manager
occupation
outdoors
pipe
portrait
professional
radio
safety
smiling
sun
supervisor
talking
teamwork
technology
town
trees
walkietalkie
work
worker