pit orifice

例句：

1. 1. The engineer carefully drilled a pit orifice in the wall to install the new pipe.
   工程师小心地在墙上钻了一个孔来安装新管道。
2. 2.The scientist used a microscope to examine the tiny pit orifice on the surface of the sample.
   科学家使用显微镜检查样本表面的微小孔洞。
3. 3. The hole in the wall was large enough for a person to crawl through.
   墙里的洞足够大，可以让人爬过去。