enforce a blackout

• 管制灯火

enforce a blackout的用法和样例：

例句

1. The snow and the blackout combined to make motoring perilous.
   大雪加上灯火管制使得车辆行驶成了危险的事。
2. The streets were not lighted at night during the blackout.
   灯火管制期间，夜晚街道没有照明。