spanner hole

例句：

1. 1. The spanner was inserted into the hole to tighten the bolt.
   扳手被插入螺栓孔以拧紧螺栓。
2. 2.The carpenter found a spanner hole in the wall and used it to hang a picture.
   木匠在墙上发现了一个扳手孔，用来挂一幅画。
3. 3.The plumber had to remove the spanner hole before he could repair the leaky pipe.
   水管工在修理漏水的管道之前必须先移除扳手孔。