A block in the pipes的用法和样例：
- There is a block in the pipe and the water can't flow away.
- There is a block in the pipe and the water can not flow away.
- The pipe has a block in it of my hair.
- There was a block in the pipe and the water couldn't flow away.
- At last the noise was traced to a fault in the pipes.
- Water squirted out of a hole in the pipe.