I think hens are one of the useful animals.

我认为母鸡是最有用的动物之一.

互联网

Some people regard bats as bad animals . In fact, they are useful animals.

有些人觉得蝙蝠是不好的动物,但事实上, 他们是非常有用的.

互联网

Perhaps they will soon become the useful animals in the world.

或许他们很快将变成世界上最有用的动物.

互联网

Horses are very useful animals.

马是很有用的动物.

互联网

Camels and horses are very useful animals.

骆驼和马是有用的动物.

互联网

Are bats useful animals?

蝙蝠是有用的动物 吗 ?

互联网

Mules are very useful animals.

骡子是非常有用的动物.

互联网