英文關鍵字
worker
step
stairs
climb
construction
industry
windmill
tower
profession
skilled
bright
uniform
boot
metal
railing
technical
ground
sunny
day
close
side
view
crop
leg
safety
repairman
technician
service
lifestyle
staircase
stairway
walk
industrial
steel
repair
reconstruction
site
structure
technology
engineering
equipment
work