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To illustrate the exponential nature of human networks, let's look at smiles.
为了说明人类网络的指数本质，我们来以笑为例。
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$firstVoiceSent
- 来自原声例句
To illustrate the exponential nature of human networks, let's look at smiles.
为了说明人类网络的指数本质，我们来以笑为例。
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