埋まい没ぼつ原げん価かまいぼつげんかじ字FuriganaMeanings1nounsunk costTechnical accounting term for a cost that has already been incurred and cannot be recovered.埋まい没ぼつ原げん価かは、意い思し決けっ定ていの際さいに考こう慮りょす
