機器
architecture
builder
building contractor
cement
concrete
construction development
construction site
construction worker
contractor
earth mound
earth piles
engineering
equipment
excavation
female
foreman
formwork
helmet
hot weather
industry
infrastructure
inspection
job
machinery
occupation
outdoors
professional
project
rebars
rusty rebars
safety first
sand
sand bank
scorching sun
site
site clearance
steel
steel bar
steel reinforcement bars
straw hat
structure
sunny day
supervision
surveyor
under construction
walking
work crews
work tool
worker