Some scientists, however, say that the dolphin, a sea mammal, is just as smart.

然而，有些科学家说，海豚，一种海中的哺乳动物，也有那么聪明。

youdao

Some scientists, however, say that the dolphin, a sea mammal, is just as smart.

然而，有些科学家说，海豚，一种海中的哺乳动物，也有那么聪明。

youdao