英文關鍵字
base
build
builder
building
cart
caucasian
cement
concrete
construction
contractor
crank
development
dolly
domestic
empty
equipment
fill
filling
first
foundation
glove
gravel
groundwork
industrial
industry
iron
labor
machine
machinery
making
material
metal
mix
mixer
mixing
mortar
occupation
person
pour
pouring
pov
pushcart
sand
site
tool
trolley
view
volunteer
wagon
worker