泄洪

例句：

1. 1. The flood control system is designed to prevent and mitigate the impact of floods.
   防洪系统旨在预防和减轻洪水的影响。
2. 2. The river was swollen with rainwater, making it difficult for people to cross.
   由于雨水的涌入，河流变得汹涌澎湃，人们难以过河。
3. 3. The government has ordered a series of measures to prevent further flooding in the affected areas.
   政府已经下令采取一系列措施来防止进一步的洪水灾害。