wave slowness

例句：

1. 1. The waves crashed against the shore.
   波浪冲上了岸边。
2. 2.The ocean waves are so powerful that theycan break a ship.
   海浪如此强大以至于可以摧毁一艘船。
3. 3. The waves were sohigh that it was difficult to see thebeach.
   海浪如此之高以至于难以看到海滩。