The classical experiment is placing a rodent in a cold room at 4 degrees Celsius.

传统的实验是把一只啮齿动物放在一个温度为4摄氏度的寒冷房间里。

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Placing a little lamp beside the sleeping child, he watched her a long, long time.

他把一盏小灯放在睡着的孩子旁边，久久地注视着她。

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For those who snore only when sleeping on their back, placing a pillow under their upper back may encourage them to change sleeping position.

对于那些仅在仰卧时才会打鼾的人，在他们的上背部放一个枕头可以促使他们改变睡姿。

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Someone decided to heat the area by placing a charcoal grill inside the camper.

VOA: special.2010.02.02

And what it involves is placing a value, usually a dollar value, to stand for utility on the costs and the benefits of various proposals.

其做法包括，作出估价，通常是估计出金额，来代表功利,即分别列出成本，和各项收益的金额。

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So, these are some of the controversies that arise these days from cost-benefit analysis, especially those that involve placing a dollar value on everything to be added up.

以上即为近来对成本效益分析,引发的一些争论，尤其是其中那些,认为可以用金钱衡量一切的观点。

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They want this sub to carry two to three people, and are placing a heavy emphasis on science.

BBC: James Cameron back on surface after deepest ocean dive

Venezuelan parliament speaker Diosdado Cabello compared the meeting to "placing a bomb on the train".

BBC: Venezuela and Colombia in row over Capriles meeting

Soon after placing a testosterone patch on her bare hip, she noticed a startling change.

FORBES: Quest for Desire