坑道 こうどう Common noun (common) (futsuumeishi) 坑道こうどう Common Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) tunnel;(mining) gallery;level;shaft;pit 漢字 kanji used 坑 pit, hole 7画 道 road-way, street 12画
坑道こうどう Common Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) tunnel;(mining) gallery;level;shaft;pit
Shirabe