double swell hand

例句：

1. 1.The surfers were caught in a double swell, making it difficult to ride the waves.
   冲浪者被双浪涌困住，难以驾驭海浪。
2. 2.The double swell made it impossible for the fisherman to catch any fish.
   双浪涌使得渔夫无法捕到任何鱼。
3. 3.The double swell was so strong that it caused the beach to wash away.
   双浪涌如此强烈以至于冲垮了沙滩。