staple bolt

例句：

1. 1. The carpenter used a staple bolt to fasten the wooden planks together.
   木匠用一个栓钉将木板固定在一起。
2. 2. Thefarmer used a staple bolt to secure thefence around his farm.
   农民用一个栓钉来固定他的农场围栏。
3. 3. The constructionworker used a staple bolt to hold upthe roof of the building.
   建筑工人用一个栓钉来支撑建筑物的屋顶。