дельфин in English:

The dolphin and trainer communicated much better than we expected.

Have you ever touched a dolphin?

The boy considered the dolphin his best friend.

The dolphin is the friendliest animal in the sea.

Last summer I swam with dolphins.

A dolphin is no more a fish than a dog is.

The dolphin is a very intelligent animal.

What you saw was a dolphin.

Thousands of people went to the beach to see the dolphin.

the dolphins are mammals

His daughter studies and trains dolphins

I would love to swim in the sea with a dolphin.

I saw dolphins when I was in Florida.

Last holiday I saw a dolphin.

Ever wish you were born like a dog or a dolphin?