機器
activity
adhere
barrow
bricklayer
builder
building site
cart
cast
cement
civil engineering
clear out
concrete
construction
contractor
effort
empty
empty out
fill
fill up
flip over
fresh
grout
hand
hold on
industrial
industry
machinery
manage
manpower
manually
mason
masonry
metal
mixer
mortar
offload
pour
pour out
rollover
site
supply
tipping
under
unload
wet
wheelbarrow
work
worker
workforce