据她估计，虚拟产品市场现在价值大约30亿。

She estimates that the virtual-goods market is worth about $3 billion today.

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据她估计，这些网恋关系对现实世界中的爱情威胁最大。

In her estimation, these online romances pose the greatest risk to real-world relationships.

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据她回忆，在昏昏欲睡的时候，好像见到有一把美工刀。

Before she drifted off, she said she remembered seeing a box cutter.

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Then I know someone else in the department and, as best I know, I'm the only person she knows.

我也认识系里另一个人，据我所知，我是她唯一认识的人。

耶鲁公开课 - 心理学导论课程节选