洞道とうどうtoudou洞とう道どう洞とう道どうShow answer(Space)Suspend(@)洞とう道どう洞とう道どうtoudouNoun (common)Noun (common) (futsuumeishi)Noun (common)service tunnel (cables, gas, etc.)洞とう道どう洞とう道どうtoudouservice tunnel (cables, gas, etc.)What does 洞道 mean in English?service tunnel (cables, gas, etc.)(n)Search the picture dictionary for 洞道
