Translation of "Dolphin" in Chinese

A dolphin is a mammal.

海豚是哺乳動物。

Tom is a dolphin trainer.

汤姆是海豚训练员。

A dolphin is a kind of mammal.

海豚是一種哺乳動物。

The dolphin is a very intelligent animal.

海豚是十分聰明的動物。

The dolphin and trainer communicated much better than we expected.

海豚和驯养员交流得比我们所期望的好得多。