petrel

例句：

1. 1.The petrels were diving for fish in the ocean.
   海鸥们在海里潜水捕鱼。
2. 2.The petrel was a symbol of freedom and independence.
   海鸥是自由和独立的象征。
3. 3.The petrel flew over the city, leaving a trail of feathers behind.
   海鸥飞过城市，留下一串串羽毛。