帮我翻译一段短文 - 急 在线等,谢谢!

帮我翻译一段短文 - 急 在线等,谢谢!
Dolphins are the real stars in the aquarium. People enjoy watching them spinning and leaping. Dolphins are clever and lovely. They are our best friends.
Sometimes one, two, or three dolphins in the group lift their mouths out of the water at the same time. They swim on the surface like this for 5 or 7 seconds. This a sign that the group is peaceful and they have just had or are about to have a rest.
When the dolphins need to move quickly or run away from their enemies, they leap out of the water. They take long, arching jumps. They have to swim very quickly to do this.
Sometimes, one or more dolphins in the school leap out of the water and spin around and around. Each dolphin has its own way of spinning. This may mean something, but we don’t know the meaning.
Dolphins are mammals with lungs. This means it must always come up to the surface to breathe. The dolphin spends its whole life in the water. However, it cannot drink salt warer. The dolphin absorbs water only from the flesh of the prey it eats.
Like all animals, the dolphin needs sleep. It rests by shutting off one half of its brain. The other half stays alert to danger.
Dolphins have amazing brains. They can respond to the Earth’s magnetic field. That’s why dolphins may swim for three days to reach the Atlantic without going wrong.

海豚是水族馆中十足的明星.人们喜欢看它们旋转,看他们跳跃.海豚既聪明又可爱,是我们人类的好朋友
有时候,一只,两之,或者三只海豚一组,同时使它们的嘴在水面上翘起,它们也会象这样游上五到七秒钟,这是一个信号,代表它们很平静,刚刚休息过或者马上要休息了
待续