n.拦起(堵塞)
The dam burst under the weight of water. 那水坝在水的压力下决口了。
Millions of gallons of water are kept back by the dam. 这个堤坝拦住了滔滔的洪水。
In case of flood, the dam can protect us. 在发洪水的时候,大堤可以保护我们。
The village was swept away when the dam burst. 村庄在水坝决堤时被冲走了。