spillway basin

例句：

1. 1. The spillway is designed to prevent water from flowing over the edge of the dam during heavy rains.
   溢流堰的设计是为了在大雨期间防止水溢出大坝边缘。
2. 2.The spillway was built to handle the floodwaters that would otherwise have caused significant damage.
   溢流堰的建设是为了处理洪水，否则会造成严重的损害。
3. 3. The spillway is crucial for maintaining the stability of the reservoir and preventing flooding.
   溢流堰对于保持水库的稳定性和防止洪水泛滥至关重要。