銅礦 tóngkuàng copper mine Origin Definitions Defs Strokes Stroke Words Sentences Sents tóngkuàng copper mine 铜 銅 tóng noun copper copper (chemical element Cu); also used to refer to bronze and other copper alloys矿 礦 kuàng noun mine a place or unit where minerals are extracted; a mine or mining sitetóngkuàng copper ore 铜 銅 tóng noun copper copper (chemical element Cu); also used to refer to bronze and other copper alloys矿 礦 kuàng noun ore mineral deposit; ore; naturally occurring materials in the earth that can be mined for value