nails barrel clamp

例句：

1. 1. She nailed the picture to the wall with a hammer.
   她用锤子把画钉在墙上。
2. 2. The carpenter used nails to hold the boards together.
   木匠用钉子把木板固定在一起。
3. 3. The nails were rusted and needed to be replaced.
   钉子生锈了，需要更换。