海豚的复数用英语怎么说

"Dolphin" 的复数形式是 "dolphins"。这个词来源于希腊语 "delphis"，意为"海豚"。

例句：

The dolphins were jumping out of the water. (那些海豚在跳出水面。)
We saw a pod of dolphins swimming in the ocean. (我们看到了一群海豚在海里游泳。)
The trainer worked with a group of dolphins. (那位训练师和一群海豚一起工作。)