But here's the punch line: laughter and joy are not unique to humans, the study says. Ancestral forms of play and laughter existed in other animals long before humans began cracking up.
研究结果同时表明，笑和喜悦并不只是人类所特有的，早在人类会笑之前，其它一些动物就已经拥有原始形态的笑声了。
This provides an opportunity to exercise, take baths, play with toys and other forms of birdy entertainment.
这提供了机会行使，洗澡，玩玩具和其他形式的怪的娱乐。
But heres the punch line: laughter and joy are not unique to humans, the study says. Ancestral forms of play and laughter existed in other animals long before humans began cracking up.
研究结果同时表明，笑和喜悦并不只是人类所特有的，早在人类会笑之前，其他一些动物就已经拥有原始形态的笑声了。
The methods and achievements will play a referential role in having a research on the swift-calculation of fuzzy number of other forms.
所采用的方法以及所得到的结果，对于研究其它形式模糊数的快速计算问题有很好的参考作用。
The methods and achievements will play a referential role in having a research on the swift-calculation of fuzzy number of other forms.
所采用的方法以及所得到的结果，对于研究其它形式模糊数的快速计算问题有很好的参考作用。
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