overflow block

例句：

1. 1. The container was designed to prevent overflow during heavy rainfall.
   这个容器设计用来防止大雨时溢出。
2. 2.The engineer used an overflow block to divert the water from the leaky pipe.
   工程师使用一个溢流块将水从漏水的管道中引走。
3. 3.The construction crew had to remove the overflow block before they could start work on the new road.
   建筑工人在开始新道路工程之前，必须移除溢流块。