... Like an echo（像回声一样） Everything is in a mess（一切都很乱） Freezing in the darkness（为什么在黑暗这种感觉如此冰冷） ...
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通过像回声一样反弹发出的声音，海豚可以在水里分辨是岩石或者是一条鱼在它前面！
By sending out sounds which bounce back like echoes, a dolphin can tell if a rock or a fish lies ahead of it in the water!
只需经过几周的训练，你便能像海豚和蝙蝠一样通过回声定位法在黑暗中“看见”物体。
With just a few weeks of training, you can learn to "see" objects inthe dark using echolocation the same way dolphins and bats do.
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