金属头手杖

例句：

1. 1. The car is made of metal.
   这辆车是用金属做的。
2. 2. He used a metal detector to find the lost treasure.
   他用金属探测器找到了丢失的宝藏。
3. 3. The construction site was surrounded by metal fences.
   施工现场被金属围栏包围着。