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
activity
duty
nature
jackhammer
helmet
soil
chisel
first
earthmoving
workplace
scaffolding
quarry
vast
district
repair
wheel
pipe
occupation
hauler
builder