坑こう内ない事じ故こじ字FuriganaMeanings1nounmine accidentRefers to accidents occurring inside a mine, such as collapses, gas explosions, or flooding.坑こう内ない事じ故こで複ふく数すうの作さ業ぎょう員いんが負ふ傷しょうした。Several workers were injured in the mine accident.
