擴孔 Save Sign in to save words Simplified: 扩孔 kuòkǒng ㄎㄨㄛˋ ㄎㄨㄥˇ to widen a tube to ream (i.e. widen a hole) Character by character 擴(kuò)enlarge 孔(kǒng)surname Kong A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0