It lives in the sea It looks like a very large fish.It lives in both hot and cold places.It has a big mouth and a long tail.It's a( )

It lives in the sea It looks like a very large fish.It lives in both hot and cold places.It has a big mouth and a long tail.It's a( )
It lives in the sea It looks like a very large fish.It lives in both hot and cold places.It has a big mouth and a long tail.It's a( )

It lives in the sea It looks like a very large fish.It lives in both hot and cold places.It has a big mouth and a long tail.It's a( )
whale.鲸.在词典上的解释是a very large animal that lives in the sea and looks like a fish,but is actually a mammal……tail是尾巴…mammal是哺乳动物