gun cathode

例句：

1. 1.The gun was loaded with a high-velocity bullet.
   这把枪被装填了一颗高速子弹。
2. 2.The gun was used to shoot the target.
   这把枪被用来射击靶子。
3. 3.The gun was a symbol of power and authority.
   这把枪是权力和权威的象征。