flood prevention projects的用法和样例：
例句
- A flood control protected area means an area protected by flood control works according to flood control standards.
防洪保护区是指在防洪标准内受防洪工程设施保护的地区。 - The Chinese government has increased investment in flood control project construction since last year.
去年以来，国家加大了对防洪工程建设的投入。
