cap pistol

例句：

1. 1.He carried a cap pistol in his pocket.
   他口袋里带着一把手枪。
2. 2. The policeman used a cap pistol to subdue the suspect.
   警察使用手枪制服了嫌疑人。
3. 3. She was carrying a cap pistol when she heard someone calling her name.
   她听到有人叫她的名字时，手里还拿着一把手枪。