英文關鍵字
road
construction
site
work
industry
equipment
machinery
industrial
timelapse
time
lapse
machine
excavator
engineering
heavy
excavation
bulldozer
worker
digger
vehicle
tram
metro
traffic
rails
comfort
system
rcs
intersection
crossroad
safety
background
skyscraper
wall
labor
plan
development
street
concreting
knockboring
quarry
block
digging
produce
unloading
flats
estate
construct
fossil
large