堵塞物

例句：

1. 1. The pipe was blocked with a piece of debris.
   管道被一块碎片堵住了。
2. 2. The road was blocked due to an accident.
   由于一场事故，道路被封锁了。
3. 3. The drain was clogged and needed to be cleared.
   下水道被堵塞了，需要清理。