And some go for pure chemistry, breaking the cellulose down into a gaseous mixture of hydrogen and carbon monoxide before building it back up into something more useful.

也有的是纯粹的化学，将纤维素分解成一种氢和碳的气体混合物，然后再将其合成更为有用的东西。

youdao

Whether it's helping someone who fell to get back up, or picking up something that spilled in the supermarket, it shows you care, which is empowering.

无论是帮助低谷中的人恢复，还是在超市捡掉出来的东西，都显示了你的在意，这是传播影响力。

youdao

Nature abhors a vacuum, so if you clear space without filling it back up with something worthwhile, new distractions will creep in.

自然界没有真空，所以如果你在清理空间时不在原处放进什么有价值的东西，新的干扰物就会潜入。

youdao

Look, when somebody's asleep, we need to do something to, in effect, wake them up, something to turn the functioning back on.

当某人熟睡时，我们需要做些什么才能叫醒他们，做些什么才能恢复他们的功能。

耶鲁公开课 - 死亡课程节选

So, if you use a black lamp or something and you excite something up to a higher energy level and then it relaxes back down to its lower energy state, it's going to emit a new wavelength of light, which is going to be visible to you.

如果你用一个紫外灯或别的,东西把某种分子激发到,更高的能级，然后它会掉回,到低能级，它就会释放,一个新的波长的光,这个光是可见的。

麻省理工公开课 - 化学原理课程节选

After a week since Chatroulette went down, promising a new version to come soon, something has come back up on its site.

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And it better cover something that can back that up.

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So, putting it all back together and we come up with something of a risk floor, if you will.

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