英文關鍵字
adult
business
busy
computer
concept
drill
engineer
equipment
field
fossil
fuel
helmet
industry
job
land
man
mining
occupation
oil
oilman
outdoors
power
production
pumpjack
refinery
rig
smiling
snow
technology
worker
working
英文關鍵字
adult
business
busy
computer
concept
drill
engineer
equipment
field
fossil
fuel
helmet
industry
job
land
man
mining
occupation
oil
oilman
outdoors
power
production
pumpjack
refinery
rig
smiling
snow
technology
worker
working