firing silver paste

例句：

1. 1. The gun was firing when I arrived.
   我到的时候枪正在射击。
2. 2. The fireworks lit up the sky during the celebration.
   庆典时烟花照亮了天空。
3. 3. The firefighters were firing water at the burning building.
   消防员们正在向燃烧的建筑喷射水。