英文關鍵字
and
bulldozer
bulldozers
civil
construct
constructing
construction
digging
dump
equipment
equipments
excavate
excavated
excavating
excavation
excavations
excavator
excavators
machine
machinery
machines
nbulldozer
nexcavator
shots
trench
trenches
trenching
truck
trucks
work
worker
workers
workman
works