英文關鍵字
big
black
cast
coal
deep
destruction
dig
digging
dirt
dirty
energy
environment
environmental
equipment
excavate
excavation
excavator
exploitation
explore
explosion
export
extract
extraction
facility
fuel
geology
heavy
huge
industrial
industry
landscape
large
machine
machinery
manufacture
manufacturing
mine
mineral
mining
open
pit
pollution
power
production
quarry
raw
resource
view