a canal zone的用法和样例：
- A raised bank or path, such as one along a canal.
- The two towns are linked by a canal.
- His decapitated body was found floating in a canal.
- A river is a natural waterway but a canal is not.
- We can build a canal through the desert.
- He said that they were digging a canal last winter.
a canal zone的相关资料：