As the boat moved slowly up the East River in New York, the doctors put President Cleveland to sleep with an anesthetic drug.

VOA: special.2010.06.17

Probably the best answer is our body is worn out during the day and sleep is necessary to put it back into shape.

最佳的答案应该是,一天下来，我们的身体已经疲惫了,有必要进行睡眠，以恢复状态。

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First,we'll put you to sleep when we do all this procedure.

首先会让你进入睡眠状态。

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