Dolphins are very social mammals, as Dave , the Marine Biologist told us.

船上海洋生物学家Dave告诉我们,海豚是非常具有社交能力和喜欢群居的哺乳类动物.

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You are listening to a marine biologist Joe Pawlik at the University of North Carolina, Wilmington.

您正听到的是威明顿市北卡罗来纳大学海洋生物学家乔·鲍里克的声音.

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