英文關鍵字
activity
architecture
build
climb
concrete
construction
day
employee
energy
engineering
equipment
field
first
gopro
handrail
hawser
heavy
helmet
high
holer
industry
iron
job
laborer
ladder
men
metal
motion
moving
operator
outdoors
people
person
pipe
railing
rig
rotate
site
slow
stair
staircase
steel
step
teamwork
top
tower
view
well
worker
workman