英文關鍵字
automobile
equipment
explore
geology
granite
heavy
industrial
industry
iron
ironstone
large
machine
machinery
material
nature
operation
ore
quarry
removal
road
stone
transport
truck
yellow
英文關鍵字
automobile
equipment
explore
geology
granite
heavy
industrial
industry
iron
ironstone
large
machine
machinery
material
nature
operation
ore
quarry
removal
road
stone
transport
truck
yellow