They both began to laugh over nothings as children will when they are happy together.

任何事情都能让他们开怀大笑，就像孩子们开心地在一起的时候一样。

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They would both laugh at you.

他俩都会嘲笑你。

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Humans laugh mainly when we exhale, but Bonobos, on the other hand, laugh when they both inhale and exhale, creating a non-stop laugh.

人类的笑声通常是在呼气时，而巴诺布猿则是在吸气和呼气时发出笑声的，这样就形成了连续不断的笑声。

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