英文關鍵字
architecture
big
blender
boots
boss
builder
building
business
cement
chute
civil
concrete
concreting
construction
contractors
crew
curb
deliver
engineering
equipment
flowing
foreman
form
foundation
frame
hardhat
heavy
industry
installing
job
labor
loading
material
messy
mixer
mixing
occupation
pouring
repairing
rock
rod
safety
shovel
site
slab
stone
strength
structure
wet
work