open hole completion

例句：

1. 1. The engineers were able to complete the project on time by opening a new hole in the wall.
   工程师们通过在墙上开一个新洞，成功地按时完成了这个项目。
2. 2. After completing the task, they closed the hole and secured the area with bolts.
   任务完成后，他们关闭了洞口并用螺栓固定了区域。
3. 3. The construction crew had to open several holes in order to access the underground tunnel.
   施工队不得不打开几个洞口才能进入地下隧道。