海豚实际上会发出两种声音。

Dolphins actually produce two types of sounds.

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这些蝙蝠能够区分这两种声音，不仅仅是通过树木的回声，而是通过任何平滑或粗糙的回声。

These bats can distinguish between the two, and not just with trees, but with any echo that comes in a smooth or rough shape.

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其实这两种声音都在表达胜利的欢欣。

Those are both expressions of triumph.

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Hearing a little bit of a mix here.

我听到两种声音都有。

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And so, an English speaker can hear the difference between "Lip" and "Rip" and that corresponds to two different words in English.

所以,英语说话者可以听出,"Lip"和"Rip"之间的差别,而这两种声音在英语中对应了不同的单词

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