flash line

例句：

1. 1. The engineer used a flash line to illuminate the area.
   工程师使用闪光带来照亮区域。
2. 2. The policeman flashed his light across the street to find the thief.
   警察用警灯在街道上来回闪烁，以寻找小偷。
3. 3.The car's headlights were flashing as it approached the intersection.
   汽车的头灯在接近交叉路口时闪烁。