But before we get there, let's listen to Lisa Kaenzig, researcher and Associate Dean for William Smith College, New York State, telling us a bit more about what being an introvert typically means.

在这之前，我们先来听听纽约州威廉•史密斯学院的研究学者兼副院长丽莎·凯恩兹告诉我们什么是典型的内向者。

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But most scholars - such as Roger Smith with the College of William and Mary - say the figure is higher.

VOA: standard.2010.03.18