are

assist

background

border

build

builder

business

busy

cart

cement

concrete

construction

container

dirty

equipment

foundation

handcart

handle

hard

help

job

load

machine

machinery

manage

metal

mixing

mud

old

pour

pouring

pull

push

sand

service

showel

site

stain

steel

team

teamwork

tool

transport

transportation

trolley

truck

vehicle

wheel

wheelbarrow

white

work

worker

workers