high-sill spillway

例句：

1. 1. The high-sill spillway is designed to prevent floods during heavy rainfall.
   高堰溢洪道设计用来防止暴雨期间的洪水。
2. 2. The construction of the high-sill spillway was a major project for the city's infrastructure.
   高堰溢洪道的建设是该市基础设施的一个主要项目。
3. 3. The high-sill spillway has been in operation for over a decade and has proven to be an effective solution for flood control.
   高堰溢洪道已经运行了十多年，并证明是一种有效的洪水控制解决方案。