英文關鍵字
adult
boot
boots
business
career
chemical
climb
close
closeup
construction
employee
engineer
engineering
equipment
factory
feet
foot
gas
industrial
industry
legs
lifestyle
man
manufacturing
move
mud
nature
occupation
oil
outdoors
path
people
person
plant
production
professional
safety
service
shoes
site
stairs
steel
step
view
walk
walking
work
worker
workers