floodway channel

例句：

1. 1. The floodway channel is crucial for flood control and water management.
   洪水通道对于防洪和水资源管理至关重要。
2. 2. The construction of the floodway channel has been a long-term goal for the city.
   建设洪水通道一直是该市长期的目标。
3. 3. The floodway channel plays a vital role in preventing flooding during heavy rainfall events.
   洪水通道在防止暴雨期间的洪水泛滥中起着至关重要的作用。