英文關鍵字
blue
bucket
builder
cement
close
concrete
construction
contractor
down
drop
equipment
fall
flow
flowing
full
gravel
hand
indoor
industrial
industry
instrument
job
labor
manual
material
mix
mortar
motion
object
plaster
pour
pouring
repair
sand
scatter
slow
solution
spatula
spill
stream
structure
tool
trowel
white
work
worker