英文關鍵字
mine
miners
dark
cart
rails
pit
ore
minerals
mining
industry
workers
cave
tunnel
adit
earth
dig
coal
coalman
mountain
lantern
lamp
illuminate
path
darkness
metallurgy
英文關鍵字
mine
miners
dark
cart
rails
pit
ore
minerals
mining
industry
workers
cave
tunnel
adit
earth
dig
coal
coalman
mountain
lantern
lamp
illuminate
path
darkness
metallurgy