英文關鍵字
activity
building
bulldozer
city
closeup
constructing
constructional
demolition
detent
dig
digger
dipper
dissociate
dredge
emphasis
equipment
excavator
hydraulic
industrial
iron
jamb
jaw
job
ladle
leaf
loader
loading
machinery
mover
multifunctional
new
outdoor
paw
pump
retractable
road
scenic
scoop
security
stop
technics
technique
telescopic
tractor
unloading
work
working
yellow