rain leader downspout

例句：

1. 1.The rain leader is responsible for directing the flow of water from the roof to the ground.
   雨水主管负责将屋顶的水引向地面。
2. 2.The downspout was clogged with leaves and debris, causing a backup in the drainage system.
   排水管被树叶和杂物堵塞，导致排水系统堵塞。
3. 3. The gutters are designed to collect and direct rainwater away from the foundation of the house.
   檐槽设计用来收集并引导雨水远离房屋的基础。