04-2 微笑才是灵丹妙药

<p data-flag="normal" style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;">社群的进化How Many Friends Does One Person Need?</p><p data-flag="normal" style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;">（英）罗宾&middot;邓巴 著</p><p data-flag="normal" style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;">&nbsp; &nbsp;李慧中 译</p><p data-flag="normal" style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;"><span>PART 2 社群的沟通&nbsp; &nbsp;</span></p><p data-flag="normal" style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;"><span>04 情感的纽带</span></p><p style...