working hole

例句：

1. 1. The engineer found a working hole in the wall that could be used for additional storage.
   工程师在墙上发现了一个可以用作额外存储的工作孔。
2. 2. The construction crew worked diligently to repair the damaged working hole.
   施工队勤奋地修复了损坏的工作孔。
3. 3. The scientist discovered a working hole in the rock formation that could provide valuable insights into geological processes.
   科学家在岩石构造中发现了一个工作孔，这为地质过程提供了宝贵的见解。