translation.en: The first thing that got me interested in the sounds of these underwater animals, whose world was so foreign to me, was evidence from captive dolphins that captive dolphins could imitate human sounds.
translation.zh: 第一件让我对这些海底动物的 声音产生兴趣的事是， --这对我来说是个陌生的世界-- 从捕获的海豚中发现的证据证明： 它们能模仿人类的声音。