灰海豚

例句：

1. 1. The gray dolphin is a fascinating creature known for its intelligence and playfulness.
   灰色海豚是一种令人着迷的生物，以其智慧和活泼而闻名。
2. 2. Gray dolphins are often seen in groups, playing and interacting with each other.
   灰色海豚经常成群结队出现，彼此玩耍和互动。
3. 3. In the wild, gray dolphins are known to be highly intelligent and adaptable.
   在野外，灰色海豚被认为非常聪明且适应能力强。