水鸟

例句：

1. 1. The waterbirds swam gracefully across the river.
   水鸟们优雅地游过了河。
2. 2.The park is home to many waterbirds during the spring migration.
   公园在春天迁徙期间有许多水鸟。
3. 3. The hunters were disappointed when they saw only a few waterbirds in the lake.
   猎人看到湖里只有几只水鸟时感到失望。