canal of uterine cervix

例句：

1. 1. The canal connects two rivers and provides transportation for people and goods.
   这条运河连接了两条河流，为人们和货物提供了运输服务。
2. 2. The construction of the canal was a significant achievement in engineering.
   这条运河的建设在工程上是一个重大的成就。
3. 3. The canal is an important waterway for agriculture in this region.
   这条运河是该地区农业的重要水道。