When we came in we saw her doubling up on the sofa.

我们进来时看见她蜷缩在沙发上。

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With rents high and jobs hard to come by, it's no surprise that people are doubling up.

高租金、工作难找等一系列问题的到来使得人们同居一室没什么令人惊讶的。

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In the next few releases, we are doubling up that effort and are aiming to make Flash compilation speed comparable to other client technologies.

接下来的几个版本中，我们会加倍努力提升Flash的编译速度，以期能达到其他技术的水平。

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But actually there is a little bit of an energy cost into doubling up into a single orbital, because, of course, it takes energy when you create more electron repulsion, that's not something we want to do, but we have to do it here, and it turns out that that effect predominates over, again, the energy that we gain by increasing the atomic number by one.

但实际上，在一个轨道上放两个电子,确实会亏损一点能量，因为，当你加入更多电子，引起更大的排斥能,这显然会消耗能量，这不是我们想要做的，但是在这种情况下我们不得不做，结果这一影响，超过了增加一个,原子序数所得到的能量。

麻省理工公开课 - 化学原理课程节选

And no more doubling up to save money: Single rooms on the road are mandatory.

FORBES: Magazine Article

All evidence pointed to a doubling up trend and, in hindsight, it makes perfect sense.

FORBES: Property Managers Cut Renters Slack But At What Price?

The returning Alpha crewmembers, meanwhile, are doubling up on exercise sessions to prepare for their return to Earth's gravity.

CNN: Space station handover ceremony delayed