瞎灯灭火
      Explanation: Described the night without any light or heavy. "Songs to listen to Lao Maozi Rights Qing Nian": "cloudy flood wiper wind, fire house lights blind and empty, and the girl sitting wife bullpen, specifically to listen to Lao Maozi Rights Qing." Is also a "blind lamp black fire . " "People's Daily" 1976.1.17: "Village Theatre will start to show, and when the play is not good to go blind fire, black lights, it had to widen the road!"