扑动

例句：

1. 1. The bird was plunging into the water with a strongflap of its wings.
   鸟用强有力的翅膀拍打着，一头扎进水中。
2. 2. Thehorse was plunging through the thickfog, its breath visible in the coldair.
   马在浓雾中奔腾，呼出的气在寒冷的空气中可见。
3. 3.The waves were plunging against theshore, creating a powerful spray.
   波浪撞击着岸边，激起了一股强大的浪花。