许多人并不知道私人时间什么时候结束，工作时间什么时候开始(反之亦然)。

Many of us can't tell when our personal time ends and the workday begins (or vice versa).

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瓦霍维娅公司前董事长托马斯-R-威廉斯发现，许多在银行界工作的年轻人不知道什么时候该停止研究方案，什么时候该着手结束工作。

Thomas R. Williams, former chairman of Wachovia Corporation, discovered that many young people in banking don't know when to stop researching a project and start wrapping it up.

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你昨天什么时候结束工作的？

When did you finish working yesterday?

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