translation.en: Now think about it. This is an amazing thing: That in this frequency range where whales communicate, the main source globally, on our planet, for the noise comes from human ships, thousands of human ships, distant, far away, just all aggregating.
translation.zh: 现在考虑一下。这是个奇妙的事情。 就在鲸们用来交流的这个频率范围内， 在我们的星球上，全球主要的噪音来自 人类的船只， 数以千计的远处的人类船只产生的噪音 汇聚起来。