海豚是海洋中最聪明的动物之一。

___Dolphins are among the most intelligent creatures in the ocean.

海豚队在这个赛季表现非常出色。

The ___Dolphins have performed exceptionally well this season.

港口入口处安装了一排海豚形状的防护装置来保护停泊的船只。

A row of ___dolphins was installed at the harbor entrance to protect the moored boats.