sea robber

1. The sea robber laughed as he looked back and saw that there was nothing to mark the place of the hidden rock.
   海盗回过头看，看到那块暗礁什么标记也没有了，就大笑起来。

noun

1. someone who robs at sea or plunders the land from the sea without having a commission from any sovereign nation

   Synonym:    piratebuccaneersea rover