坑道 [－－]

Jyutping haang1 dou6
Pinyin kēng dào

Definitions (CC-CEDICT)
  1. mine shaft
  2. gallery
  3. tunnel
Definitions (Wiktionary)
  1. noun
    tunnel
  2. noun
    gallery; mineshaft
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）