hold a gun

例句：

1. 1.He held a gun to her head and threatened to shoot her.
   他持枪威胁她，要射杀她。
2. 2.The policeman held a gun at the suspect until they could apprehend him.
   警察持枪对准嫌疑人，直到他们能够将他逮捕。
3. 3. The soldier held a gun tightly in his hands, ready for action.
   士兵紧握着枪，准备行动。